Final Design Report

A R L I N G T O N PUBLIC SCHOOLS

WAKEFIELD HIGH SCHOOL

FINAL DESIGN REPORT MARCH 7, 2011

BOWIE GRIDLEY A R C H I T E C T S 1010 Wisconsin Avenue NW, Suite 400 Washington, District of Columbia 20007 w w w. b o w i e - g r i d l e y. c o m

BOWIE

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1.

Summary

2

2.

Planning Principles

6

3.

Final Design 3.1 Final Floor Plans 3.2 Final Elevations & Massing

4.

Typical Classrooms 4.1 Typical Classrooms 4.2 Typical Lab and Science Core

24 24

5.

Phasing Summary

26

6.

Space Program and Variance

28

7.

Summary of Project Cost

38

8.

Building Systems

9.

FINAL DESIGN REPORT

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8.1 LEED Narrative 8.2 Structural Narrative 8.3 Mechanical /Electrical / Plumbing Narrative 8.4 Landscape Narrative 8.5 Civil Narrative 8.6 Music & Auditorium Narrative 8.7 Aquatics Narrative 8.8 Food Service Narrative

40 43 45 53 58 60 62 65

Acknowledgements

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1

SECTION

1

SUMMARY

INTRODUCTION In 2006 Arlington County passed a bond referendum which included the funding of design for improvements or replacement of Wakefield High School. Bowie Gridley Architects (BGA) was engaged by Arlington Public Schools to analyze the requirements and generate a building design to serve the needs of the Wakefield and greater Arlington communities well into the future. This Final Design Report documents the final phase of that process. The previous Schematic Design Report dated June 16, 2009, documented the schematic process and studies. This included documentation of the existing programs, site and facilities of the current Wakefield High School, a summary of the Educational Specifications for the new building, review of the Planning Principles and Design Goals that guided the design studies, and documentation of the schematic design.

Aerial View of Schematic Design Sketch from Northwest

The original Feasibility Study was developed working closely with APS staff and the Building Level Planning Committee (BLPC) appointed for the project. Upon further review by both the Arlington County Board and the School Board, as well as the new County Board appointed Public Facilities Review Committee (PFRC), a set of key Concept Characteristics and Schematic Initiatives were approved as the basis for commencing the Schematic Design. This Final Design Report documents the further development of the approved Concept Characteristics and depicts the design for a new Wakefield High School.

SCHOOL OVERVIEW

Wakefield school district, with bus stops & walking radius shown

Wakefield High School is located at 4901 South Chesterfield Road in the southern part of Arlington County, Virginia. One of three public comprehensive high schools in the county, it has served a student body of roughly 1,400 in recent years. The school has earned a national

reputation as an institution that has fostered high academic achievement for all its students regardless of social, economic and developmental differences. The school has also achieved success outside of the classroom with its athletic, music, and theatrical programs creating an exciting and comprehensive educational environment often referred to as the “Wakefield Way”. In addition to serving the students, Wakefield provides a significant amenity to the surrounding community, with both its fields and program areas, such as the Aquatics Center, Auditorium, Library and others, making it a key community institution. Wakefield first opened in the mid 1950’s as the Wakefield JuniorSenior High School, and has since undergone a number of additions and renovations, including the ‘English Wing’ and the Library expansion. Despite Wakefield’s many successes, the current building and infrastructure do not meet current programmatic, safety, and comfort requirements to foster a first class education for students. This condition necessitates its replacement.

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FEASIBILITY CONCLUSIONS: CONCEPT CHARACTERISTICS AND SCHEMATIC INITIATIVES

on the use of the existing school. The design should place the building at the most public, prominent corner and maximize usable open space.

After conclusion of the Feasibility Phase and subsequent consideration by the BLPC, PFRC, County, and School Boards, the Arlington School Board approved the following Concept Characteristics. These served as the basis for the Final Design.

• Pedestrian entrance along George Mason, primary vehicular

GRIDLEY ARCHITECTS

access off Dinwiddie, service access off George Mason These access arrangements work with the natural paths taken to the site, maximizing the opportunities provided by the existing transportation network and site topography.

CONCEPT CHARACTERISTICS

• Preserve existing treed slopes, and existing stadium and tennis courts These existing, valuable, and difficult to replace amenities should be preserved.

• Outdoor arrival spaces introducing the entrances and providing student gathering space off the street It is vital to provide safe and welcoming outdoor spaces at all entrances sufficient to accommodate the large numbers of students converging at key times of day.

• New 3 story school (with partial lower level) at corner of Dinwiddie and George Mason Renovation and reuse of the existing building was determined to be too costly and significantly extended the construction period causing excessive interference with the educational mission of the school. This site has room to develop a new school without significant impact

• Main entrance welcoming the majority of users and supervised by Administration The building must be both welcoming and provide clear and supervised entrances.

• Major program elements and relationships, including a central hub or “Heart” The program relationships illustrated in the Concept Diagram, including a central hall, should be maintained and expanded.

• Looped interior circulation around an internal court Due to the number of students circulating through the building simultaneously, it is important not to create dead ends and to provide redundancy in a looped circulation system. SCHEMATIC INITIATIVES

Concept Diagram - Schematic Design

• Ensure civic presence and charisma and address both streets The building will be constructed on a prominent corner at the boundary between Arlington and Fairfax counties, and the building should embody civic presence and charisma representative of Arlington County.

• Less prominent Arrival Space along Dinwiddie The Feasibility Phase diagram shows vehicular circulation spaces and outdoor arrival spaces between the building and Dinwiddie Street. The reduction of these elements will assist the building in achieving its civic presence.

• Lessen impact of buses As a community with a multi-modal transportation focus, it is desirable not to draw significant attention to the vehicular transportation modes coming to the site.

In addition to the above approved Concept Characteristics, the School Board also incorporated these County and PFRC Schematic Initiatives to guide the further evolution of the design in Schematics:

Diagram of approved Concept Characteristics

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SUMMARY

Bowie Gridley Architects, working closely with the BLPC and APS staff, as well as the newly formed PFRC, developed a series of design iterations that met the approved Concept Characteristics and Schematic Initiatives. The resulting design meets the broad needs of the public and educational mission of the schools, as well as the specific programmatic needs of the Wakefield faculty and staff, embodying the “Wakefield Way.”

CA FE TE RIA

TO W CO HA N UR LL TY AR D

TO WN HA LL /

The Final Design places the new building in the southwest corner of the site, at the intersection of George Mason Drive and Dinwiddie Street, on the site of the existing baseball and softball fields. This location will allow the new building to be built while continuously keeping the existing school in operation. It also provides for civic presence at the key intersection and removes the building from the single-family

HE AR T

MA IN SU AD IT MIN E

FINAL DESIGN DESCRIPTION

ENTRANCE

Detail of ground Floor at heart

residential areas of the neighborhood. A consolidated parking area, roughly centered on the Dinwiddie Street frontage, will serve both school and community users of the building, as well as the outdoor recreational amenities. The building is a fan shaped form spanning from an alignment with Dinwiddie Street on the south to an alignment with the rotated stadium axis to the northeast. There are three main public corridors that the building is organized around: a linear corridor running from George Mason Drive to the central parking lot and two curving corridors running from Dinwiddie Street to the stadium. The mass is divided into a 3 story ‘A’ shaped Academic Wing fronting on Dinwiddie and George Mason, and a 2 story lower level Athletic Wing fronting on the lower portion of the Stadium bowl. The one story connections between these wings form a series of courtyards that provide abundant natural light into the interior of the building and gathering spaces for students. The primary entrance is focused on the central parking lot and bus loop, and a major corridor axis extends toward George Mason, with the hall terminating on an entrance aligned with Frederick Street. View of Final Design from S.George Mason Dr. and S. Dinwiddie St.

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The school is zoned vertically, with the more public anchor uses such as the Auditorium, the Aquatics Center, the Gymnasium, the Library, the main administrative spaces, and the central Town Square / Heart located on the ground floor. The upper two floors of the Academic Wing contain classrooms and other student focused spaces more segregated from the public. The lower floor of the Athletic Wing contains the main gym, lockers, a fitness room, and other athletic spaces. BUDGET AND SCHEDULE The area of the Final Design is a total of 403,940 gross square feet (gsf) on four floors. The largest level, the ground floor, has a footprint of 180,750 gsf, which reduces to 54,480 gsf on the lower athletic level, and to roughly 83,500 gsf each on the upper two floors of the ‘A’ shaped Academic Wing. The estimated construction cost of the Final Design is $89 million in 2011 dollars, for a total estimated 2011 project cost of $107 million. It is anticipated that the new building will be bid in Spring 2011 and be occupied in the autumn of 2013. This cost estimate and the size and quality of the building are consistent with the equity and budgetary goals set forward by the School Board in the Design Development Phase. See section 07 for additional detail. Perspective At Main Gym

ACCESSIBLITY The Final Design complies with accesibility requirements. All three primary entrances will have on grade access and approaches by accessible routes. The lower gym and athletics level as well as the stadium and tennis courts will be accessed off a sloped site walk at a 5% grade. Within the building there will be 2 elevators providing vertical access for the Athletic Wing and the Academic Wing. Accessible parking is provided at the main lot and directly adjacent to the stadium grandstands and tennis courts. A pathway across the site from George Town Hall

Town Hall Courtyard

Mason Drive to Chesterfield Road will be fully accessible as well. Gym

Sectional Perspective showing connection of Town Square / Heart, Courtyard, and Main Gym

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SECTION

2

PLANNING PRINCIPLES (Feasibility Process)

Planning Principles (Feasibility Process)

Place in the Community

The Campus Setting

The Building Environment

Presence and Scale of the building

Vehicular Site Access

Building Access

Unified vehicular entrance vs. multiple entries for multiple uses

Single main entrance vs. multiple entries for multiple users / venues

Pedestrian Site Access

Gathering Spaces

Pedestrian access vs. parking convenience

Multiple smaller intimate gathering spaces vs. one main public space

Design Qualities

Organization

Building as a Resource / Asset

Neighborhood Impact

Separation from vs. integration within the neighborhood 6

To initiate the design studies, general Planning Principles were discussed and illustrated with a variety of diagrams and images. A facilitated discussion of these concepts led to a ranked list of principles. Expanding on these, the committee created a list of Design Goals for both the site and the building. These were utilized in the evaluation and ranking of the Design Schemes.

Classrooms grouped by department / subject

WAKEFIELD

Classrooms grouped by house / career path / grade

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Design Goals (Feasibility Process) Through a series of BLPC meetings, the following goals were established:

Site

Create a civic presence and engage community through appropriate siting of the building.

Develop clear and separated vehicular circulation routes.

Conserve natural areas and retain existing athletic amenities to the greatest extent possible.

The School, as a major public structure and focal point for community activities, should be welcoming, accessible, and prominent. It should have a civic presence commensurate with its status as a major public institution, while being careful not to overwhelm smaller adjoining properties.

School bus, faculty, student, staff, and visitor parking, ‘kiss and ride’ drop off, and service traffic should have clear and substantially separate routes to avoid conflicts and make arrival by vehicle welcoming.

Natural areas, such as mature individual trees and wooded areas, should be conserved to the greatest extent possible as environmental and aesthetic community resources. Also, high value athletic improvements such as artificial turf, irrigated fields, bleachers, lighting, and other infrastructure should be preserved.

Develop pedestrian routes through and around the site to improve walking access.

Create attractive and useful outdoor spaces for teaching and informal gathering.

Recognizing that roughly 1/3 of all students arrive by foot, and the desire to encourage walking for all visitors to the site, convenient and attractive walkways around, across, and to all major amenities on the site should be provided. Conflicts between pedestrians and vehicles should be minimized.

Students, visitors, and community users of the school and fields need comfortable places to wait, gather informally, and socialize. Outdoor spaces for class instruction are a resource for a flexible and useful teaching environment. The landscape surrounding the school should compliment the full variety of these exercises.

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PLANNING PRINCIPLES (Feasibility Process)

8

Group assembly spaces to create a synergy of school and community uses near convenient accessible entrances.

Create a main entrance for the majority of users which is clear, inviting, and secure.

Establish a “heart” as a symbolic center complimented with smaller informal gathering areas.

The entrance used by the majority of users of the school should also be the symbolic main entrance or “front door”. This “front door” should have a civic presence appropriate to the school’s status in the community, and architectural cues which ensure easy navigation and a sense of openness for visitors. Combining the functional and symbolic main entrances allows enhanced supervision and security.

In a large and diverse environment like a high school for 1600 students, it is important to provide a sense of place, a symbolic “heart” that gives the school an identity to its community. Small open gathering spaces should be included throughout the building to compliment “the heart.”

Create secondary entrances to provide access for school & community use.

Distribute administration throughout the building and maximize passive security.

Express sustainability principles and design to LEED silver level.

In addition to the “front door”, secondary entrances should be provided for uses, such as athletics and aquatics, which also function when the main school facility is closed. In addition, pedestrians approaching the building from George Mason Dr. need a clear and welcoming entrance, which connects to the main corridor. All entrances should be clear for their respective uses.

Administrative functions provide centers of adult activity within the school, providing passive supervision of interior spaces. Administrative presence is particularly important at all entrances. Security systems should support this strategy and provide a secure school.

Environmental sustainability is a key value of Arlington Public Schools and the broader Arlington community. The school should both incorporate appropriate sustainable design approaches and resource conserving technologies, and celebrate and make visible those values and techniques.

Utilize significant academic and public spaces, corridors, and stairs to create vibrant interior environments within the school. Create a thoughtful mix of program spaces that encourages user interaction.

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Aerial Perspective from the Southeast

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SECTION

3

FINAL DESIGN

FINAL SITE PLAN

The new building will be sited on the prominent southwest corner of the site, on the reversed ‘L’ shaped main level area, where the baseball

The site is bounded by roads on three sides, and is roughly square in

field is opposite the existing building. This will allow the new building

shape with George Mason Drive forming the west edge, Dinwiddie

to be completed while the existing school is in full use without

Street forming the south edge, and Chesterfield Road forming the east

interruption of the academic schedule. It also moves the bulk of the

edge, while the north property line adjoins residential back yards. The

school from the smaller scaled area of the site, and places it adjacent

topography of the site is divided into several main areas. The largest

to the busiest road, and at the civic corner where Dinwiddie and George

is the roughly flat zone forming a reversed ‘L’ shape, following the full

Mason meet the Arlington and Fairfax border. This location also provides

lengths of Dinwiddie and Chesterfield and on level with those roads.

opportunities to take advantage of views into the adjoining wooded

The center of the site is a valley, in which the existing stadium and

area to be preserved, and takes advantage of the natural screening

tennis courts are located about 1 story below the streets. In the

along George Mason to conceal the service area. Rain Garden Entrance Courtyard seen from Bus Loop

northwest quadrant of the site is an existing stand of mature hardwoods, covering a significant slope that follows George Mason as it slopes downhill away from the site to the north.

The new parking area is located midway along Dinwiddie Street and

The primary pedestrian flows to the site come from the northwest

central to the site, allowing it to serve the athletic fields, the school,

along George Mason, the northeast from Barcroft along Chesterfield,

and after-hours community uses. This central location improves on

and East along Dinwiddie. The walkers/bikers coming to the building

the distributed existing parking and should encourage students and

along George Mason or from Frederick will be received by a new

other users to park on site rather than on neighborhood streets.

landscape plaza and pedestrian entrance to the building. They can

Surrounding the parking lot will be the bus loop, which will provide

also move laterally across the site on a pathway that skirts between

students with direct access to the main school entrance, and during

the Athletic Wing and the existing wooded area, past the stadium,

off hours provide additional parallel parking for large events. Covered

tennis courts, and new ball fields, and ends at Chesterfield. Walkers

and uncovered bicycle racks are provided throughout the site.

coming to the building from the northeast and east can use the extensive new walkways to approach the buildings through the Rain Garden/Entrance Courtyard.

The existing stadium, tennis courts, and multi-purpose/soccer field

Meadow Ecosystem along S. George Mason Dr.

on the north half of the site will remain, with improved access and

The site will have a more urban frontage along Dinwiddie adjacent to

additional parking provided adjacent to the multi-purpose field. Alternate

the school and parking lot, with broad walks and double rows of street

ticketing, concessions, and toilet facilities are included as an option

trees, and a more park-like streetscape to the east bordering the fields.

within the design which will improve the usability of these areas as

A naturalistic area will be developed to the north with the Commons

well. Upon demolition of the existing school, the baseball and softball

formed between the building and the existing wooded slopes. Both

fields will be rebuilt on the southeast corner of the site, and will include

the Rain Garden, between the Athletics Wing and the Academic Wing,

improved orientations, size, and amenities, and access from the central

and the Bioretention areas in the parking lot, will serve as living filters

parking lot. New plantings will help to screen the brightness of the

for stormwater run off, as well as attractive symbols of Arlington’s

lighted fields from nearby houses.

commitment to sustainability.

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AN ST

MULTIPURPOSE FIELD

D S

PRACTICE FIELD

STADIUM AN ST

ACCESSIBLE PARKING (3)

PARKING (24)

D KW AY

AY KW

TICKET

PRACTICE FIELD

TENNIS

PRACTICE FIELD CONC. & TOILET

SOFTBALL

TOWN HALL CTYD.

RAIN GARDEN

LO

OP

BIO SWALE

SERV. CT. LIGHT CT.

BUS

S. GEORGE MASON DR.

COMMONS

CONC.

W AL

Existing Site Plan

S. CHESTERFIELD RD.

S

L WA

PARKING (236)

BASEBALL

LAY-BY

S. DINWIDDIE ST.

SITE PLAN

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FINAL DESIGN FINAL PLANS

The third bar consists of the Athletic Wing housing the Aquatics Center and main and auxiliary gyms. The main competition gym floor is

The building form consists of several wings or bars arrayed in a fan

dropped a story below the entrance level to provide separation of the

shape, resolving the dual requirements for the building to be parallel

players from spectators entering from the tops of the bleachers. The

to form a street edge on Dinwiddie Street and to front on the stadium

core of the athletics program is on level with the stadium and tennis

and athletic areas to the east.

courts and will provide restroom facilities to users of the exterior amenities. The aquatic portion of the Athletics Wing is at the parking

The first two bars of the fan shape form an ‘A’ shaped, 3 story

lot end of the bar, giving it visual prominence and allowing it to have

Academic wing massed along Dinwiddie Street, and provide a

independent access.

pedestrian oriented front door to the school. The point of the ‘A’ holds the Auditorium and music program spaces, placing them in a location convenient to the public, and giving them a distinct identity Science Classroom Wing

within the school. The two legs of the ‘A’ extending toward George Mason house the general classrooms serving the majority of the

The other courtyard, flanked by the main entrance and athletics entrance

academic programs. The specialty lab spaces of the science

canopies, and fronting upon the main parking and bus loop, will be

department are expressed as a special element on two floors between

developed as a rain garden. This will provide an attractive landscape

the bars. The extended legs of the ‘A’ also serve to shelter the service

feature that performs important storm water management functions

area along George Mason Drive along with the natural grade and

and represents Wakefield’s strong commitment to sustainability.

existing trees.

Design Concept Diagram

PROGRAM DISTRIBUTION Between the Academic and Athletic Wings are several one story spaces

Typical Classroom View

including the Library, main administrative suite, and a series of exterior

The primary program elements which will be used by the community:

courtyard spaces which serve several programmatic functions and

the Pool, the Gyms, the Auditorium and Studio Theater, the Library,

bring light and views to the interior of the building. All this is bound

the Large Group Meeting Room, and the Town Hall are all located on

together by a circulation network of a main axial corridor, and two

the ground floor, and are closely accessible from the primary parking

radial corridors. At the center of the building is the Town Hall. This 2

lot and main entrances. The Aquatics Facility has its own separate

story open space serves a programmatic function as a part of the

entrance for the public through a shared vestibule with the school,

Cafeteria and acts as the main civic space of the school. It fronts

allowing the public to access the pool independently. The ground

directly onto the Town Hall Courtyard which serves both as outdoor

floor will incorporate divider gates allowing zoning of the school for

dining and as an extension of the Town Hall. It provides well supervised

public use, while still securing upstairs classrooms and other non-

outdoor space critically lacking in the existing facility.

public spaces.

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LEGEND Administration H

Classrooms Athletics / Physical Education

H LT A E

GYM PRACTICE FIELD

COMMONS MAIN GYM BELOW LI BR AR Y

Visual Arts / Music / Performance Circulation / Corridors / Stairs Custodial Support

TO W CO HA N UR LL TY AR D

CA FE TE RIA

Library / IT

TO WN HE HA AR LL/ T

KIT CH EN

MECH. POOLS

RAIN GARDEN

SERVICE COURT

AUDITORIUM

2D ARTS

3D ARTS

RAIN GARDEN B

CO

MAIN GYM BELOW TO HA WN CR LL TY D

HU

OP O L

UN S U SELI I T E NG

LIGHT COURT

BU S

CA FE .

SERVICE COURT

SPE

LI BR AR Y

COMMONS

IT

CIAL S U I T ED. E

PRACTICE FIELD

GYM

POOLS AD S U MIN IT E

Food Services

AUDITORIUM CUST.

SET SHOP KEYBOARD

PHOTO

TECH. ED.

MEETING

HEALTH SUITE

BAND

ORCH.

STUDIO THEATER

FINAL DESIGN FIRST FLOOR PLAN Schematic Design First Floor Plan

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FINAL DESIGN

PE PRACTICE FIELD

View of Main Gym

W RE ST .

ST O R.

C W AR E I DI G O/ H T

MAIN GYM

MAIN GYM

C W AR EI DI G O/ HT

PE PRACTICE FIELD

MECH.

FINAL DESIGN LOWER LEVEL FLOOR PLAN

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Schematic Design Lower Level Plan

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LEGEND Administration Classrooms

GYM BELOW

Athletics / Physical Education Visual Arts / Music / Performance Circulation / Corridors / Stairs

ROOF BELOW

Custodial Support Food Services Library / IT

OP E BE N T LO O W

CL AS SR OO MS

SCIE NCES

CL AS SR OO MS

PHY SIC LABS S

EAR TH/S P LABS ACE

CL AS SR OO MS

AUDITORIUM

POOLS BELOW OP E BE N T LO O W

CL AS SR OO MS L SK IFE ILL S

AUDITORIUM

TE A LO CHE UN RS GE

WK. & FAMILY

CLASSROOMS

STUDIO THEATER

CLASSROOMS STUDIO THEATRE

FINAL DESIGN SECOND FLOOR PLAN

Schematic Design Second Floor Plan

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FINAL DESIGN LEGEND Administration Classrooms Athletics / Physical Education Visual Arts / Music / Performance

ROOF BELOW

Circulation / Corridors / Stairs Custodial Support Food Services Library / IT

HS 2

HS 3

HS1

CLASSROOMS

HS4

BIOL OGY LAB S

INTE

BUSINESS LABS

CHE MIST R LABS Y

CL AS SR OO MS

RLUD

AUDITORIUM

ROOF BELOW

E

CHE MIST LABS RY

BIOL OG LABS Y

CL AS SR OO MS

AUDITORIUM

CLASSROOMS

FINAL DESIGN THIRD FLOOR PLAN Schematic Design Third Floor Plan 16

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PERSPECTIVE FROM GEORGE MASON DR. & DINWIDDIE ST.

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FINAL DESIGN ELEVATIONS & MASSING

Informality: Wakefield seeks to extend that an informality that is intended to be counter to the sense of institutionalism, rigidity, or intimidation in many public schools. Internally, this is expressed by

As the design team of Bowie Gridley Architects and the BLPC and

such simple moves as the Principal’s office having a door directly to

APS Staff worked on the design, several ideas were essential to

the hall that can be left open, or by providing comfortable spaces and

developing the elevations and materiality of the school.

furnishings to allow spontaneous gathering and interaction. On the exterior, the school building can express this informality by a non-

EXPRESSION OF THE WAKEFIELD WAY

rigid, asymmetrical form, and by inviting natural landscapes to extend into the building through courtyards.

Open and Welcoming: Hand in hand with its diversity, Wakefield takes pride in being a facility open to the community, students,

Forward Looking and Technology Focused: Wakefield is an educational

their families, and the greater Arlington public. This can be expressed

community focused on equipping students with general and specific

architecturally as a building with a sense of openness, where the

skills important to their lives in the 21st century. It has an emphasis on

internal activities of the school feel visible and accessible to those

science and computer instruction. While fitting in with its neighborhood

outside. The welcoming nature of the Wakefield Way can be

in its massing and detail, it is desirable to celebrate a contemporary

MATERIALS

embodied in a facility whose entrances are attractive and easily

architectural style.

The design incorporates several materials as its basic palette with which to enliven and express the ideas of the building.

found, and have the sense of seamless transition from the exterior to the interior.

Appropriate Lighting and Views: The windows of the school are its eyes, both looking outward and bringing light in. Students need both visual relief from the interior environment and abundant natural light to avoid strain and assist in concentration. The envelope of the building should accommodate thoughtfully placed glazing and provide good daylighting and attractive views.

Form Celebrates Function: The design team has sought to create a school whose rooms and spatial relationships best serve the complex needs of the Wakefield community, while embodying the fun, informality,

Detail at Dinwiddie Entrance

Masonry: A durable material that expresses the longevity and permanence appropriate to a major civic institution, masonry is the dominant material which forms the building. Two colors of brick will be used to form the Academic and Athletics bars creating the basis of the geometry. The weight of the masonry is expressed, while celebrating that it is a modern, steel framed building where the brick is supported as a veneer. Metal: Metal panels form a separate major system expressing special spaces, including athletics, performing arts, and sciences. The material embodies the technological focus of the school and is a highly durable and proven cladding system.

welcome and openness of the Wakefield Way. The resulting building should neither hide this practicality, nor formulaically follow it. The architecture should be engaging and invite an understanding of the building’s uses and functions.

Glass: Aluminum framed high performance glazing, in both window, storefront, and curtainwall systems, form the final major material. The glazing opens the building and provides another material with which to celebrate important spaces.

Detail at Bus Loop

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VIEW FROM S. GEORGE MASON DR. AND S. DINWIDDIE ST. Perspective View

DINWIDDIE STREET ELEVATION Elevation

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FINAL DESIGN

BUS LOOP ELEVATION Elevation

GYM ELEVATION Elevation 20

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GEORGE MASON DRIVE ELEVATION - N Elevation

GEORGE MASON MASON DRIVE DRIVE ELEVATION ELEVATION -- S N GEORGE Elevation

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FINAL DESIGN

Perspective View of Town Hall / “Heart”

Corridor

Corridor

Rain Garden Entry Town Hall Courtyard

INTERIOR COURTYARD ELEVATION 22

Elevation

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AERIAL PERSEPECTIVE FROM THE SOUTHEAST

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SECTION

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TYPICAL CLASSROOMS

TYPICAL CLASSROOMS The typical classrooms and their grouping were extensively discussed during the Feasibility phase with the staff and the BLPC.

It was

determined that the educational offerings and groupings were too fluid to be consolidated into any single architectural expression, and so a more general classroom layout that allowed flexibility was selected. All the classrooms serving the general academic needs are grouped into the two wings, allowing long-term flexibility in scheduling, while making 5 distinct hallway areas per floor allowing for the creation of academic identities and clusters when desired.

The individual classroom is well defined, with an average occupancy of 20 students, a smart board, white boards and tack surfaces, and a ‘mini-lab’ with several computer stations allowing for technological flexibility. The 2:3 proportion allows for flexibility of instructional layout and balances efficiency of daylighting and envelope area. The number

Typical Classroom

of classrooms is predicated on a utilization rate of 5/7 per School Board policy, allowing most classrooms to be assigned to a single teacher and allowing subject personalization of each room. Careful attention will be paid to the acoustics in the classroom for both sound transfer and clarity of speech. The partitions between the classrooms and the hallway will extend above the ceilings to the floor above, and will exceed requirements for noise reduction between spaces. The highly efficient HVAC system will provide a quiet and thermally comfortable atmosphere, and each room will be generously supplied with data and power.

TYPICAL LAB & SCIENCE CORE All 16 science labs are clustered in a distinct wing, giving them both an architectural identity on the exterior of the school and the interior. This emphasizes the importance of this program in equipping students for the 21st Century. As an increasingly important aspect of curricula, the Science Wing will function not only as a hub for the science department but each floor of the Academic Wing as a whole. This clustering will facilitate collegial interaction between faculty and students, particularly in the gathering nodes along the science hallway. This provides the multiple utility services and ventilation ducting required for a modern science lab in an efficient manner.

The science labs will be specially equipped and laid out per their individual discipline. The Earth/Space Science labs will be built for multipurpose flexibility. Chemistry and Biology labs share a common layout based upon four student teams clustered at six islands within the lab. These islands will be arranged so the students can observe the demonstration table while repeating the experiments at their own stations. The Physics and Earth/Space labs will feature movable lab tables to maximize the ability to accommodate various configurations. Each lab will be fully equipped with data display and access technology, as well as safety, gas, water, and waste disposal utilities. All labs will share prep rooms, and there will be a centralized Chemical Room to ensure secure and safe storage and distribution of materials.

24

WAKEFIELD

HIGH

SCHOOL

BOWIE

GRIDLEY ARCHITECTS

Corridor Rendering

FINAL

DESIGN

REPORT

25

SECTION

5

PHASING SUMMARY

PHASING The existing school and free standing aquatics building will remain

The geothermal well fields will be placed under the new athletics fields

open and occupied until the new facility is complete. The only initial

and parking lots. To meet the number of required wells for the

demolition that will need to take place is demolishing the English

geothermal HVAC system, it will be necessary to place some well

Wing. Upon transfer of functions to the new facilities, the old school

fields in areas occupied by the existing school and aquatics buildings,

will be demolished, the geothermal well field installed, the site re-

requiring phasing beyond occupancy of the new school. See the

graded, and the new athletics fields constructed.

MEP narrative for more detail. A temporary parking and transportation phasing plan will be developed in the following phases of design.

4 3

3

2

1

Phasing Key 1 - Demolish the English Wing 2 - Construct New School 3 - Demolish Existing School & Pools 4 - Complete Fields, Site, & Geothermal Wells

26

Phasing Plan

WAKEFIELD

HIGH

SCHOOL

BOWIE

GRIDLEY ARCHITECTS

PERSPECTIVE FROM DINWIDDIE ENTRANCE

F I NA L

DESIGN

REPORT

27

SECTION

6

SPACE PROGRAM VARIANCE

SUMMARY AND ANALYSIS At the conclusion of the Feasibility Phase, the Arlington School Board approved the Educational Specification, which included a detailed space program for the net square footage of the building. This was developed from the Arlington Standard high school space program, and from information gathered in an extensive series of interviews with staff, department heads and faculty, and through consultation with the BLPC. The approved Wakefield Ed Spec space program differed from the Arlington Standard space program in several minor ways. It has more general classroom and dedicated instructional spaces, and fewer specialty / elective spaces to make the program better fit the unique conditions of Wakefield. During the design phase, Bowie Gridley Architects refined the requirements of the various programs further in a series of meetings with faculty and department heads. Adjustments were made to the distribution of space within some departments, increasing some intra-departmental spaces while decreasing others, with the goal of maintaining a total departmental net area equal to that approved by the School Board. An example of this would be the Art department, which adjusted the relative sizes and functions of its three art lab spaces, making one lab larger, while another lab was reduced. In some other instances it was decided to make increases over the Ed Spec space allotment when the issue was critical to Wakefield. An example was the increase in size of the Principal’s office to both allow direct access from the hall and a comfortable seating area in addition to the desk. Overall, the goal was for any space to remain within a 5% variance of the Ed Spec program, as specified by Arlington Public Schools standards. As shown in the summary, the total net variance of the Schematic Design from the Ed Spec is an increase of 5%. The variance from the informal goal established in the Feasibility phase of a 66% Net/Gross ratio was 5.4%, resulting in a Schematic Design Net/Gross ratio of 60.6%.

28

WAKEFIELD

HIGH

SCHOOL

SECTION

BOWIE

6 Space Category

Room Name

ED SPEC

GRIDLEY ARCHITECTS

SD Area

Final Design Area

Variance

Percentage Variance

SUPPORTͲADMINISTRATIVESUITES

FINAL

AdministrationSuite CONFERENCEROOM CORRIDOR CORRIDOR MAILROOM MEN'STOILET P.A.SECURITYROOM PRINCIPAL'SASSISTANTSOFFICE PRINCIPAL'SOFFICE RECEPTION STORAGE SUPPLY/STORAGE TOILET TREASURER'SOFFICE WOMEN'STOILET

AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite AdministrationSuite

200SF 0SF 0SF 150SF 65SF 100SF 150SF 200SF 900SF 0SF 150SF 0SF 150SF 65SF



Ͳ19SF 155SF 109SF Ͳ3SF Ͳ7SF 5SF 32SF 104SF Ͳ438SF 10SF Ͳ3SF 60SF 34SF Ͳ7SF

AdministrationͲAP&SeniorProjects APCOORDINATOR SENIORPROJECTFACILITATOR SENIORPROJECTPRESIDENT SENIORPROJECTPRESIDENT

AP&SeniorProjects AP&SeniorProjects TeacherSupport AP&SeniorProjects

100SF 100SF 500SF 150SF

144SF 97SF 501SF 139SF

104SF 135SF 591SF 296SF

4SF 35SF 91SF 146SF

4% 35% 18% 97%

AssistantPrincipalsSuites ASSISTANTPRINCIPAL ASSISTANTPRINCIPAL ASSISTANTPRINCIPAL CLOSET CLOSET MECHANICAL MECHANICAL RECEPTION RECEPTION RECEPTION

AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites AssistantPrincipalsSuites

150SF 150SF 150SF

159SF 159SF 152SF

23SF 23SF 23SF

15% 15% 15%

100SF 100SF 100SF 100SF 100SF

179SF 179SF 112SF 179SF 179SF

173SF 173SF 173SF 21SF 21SF 67SF 67SF 137SF 141SF 140SF

Ͳ33SF Ͳ33SF 37SF 41SF 40SF

Ͳ33% Ͳ33% 37% 41% 40%

Guidance/CounselingSuite ATTENDANCEOFFICE BIͲLINGUALCOORDINATOR CONFERENCEROOM CONFERENCEROOM COUNSELOR COUNSELOR COUNSELOR COUNSELOR COUNSELOR COUNSELOR DIRECTOR EXAMSTORAGE JOBPLACEMENTOFFICE MINORITYACHIEVEMENTCOORDINATOR RECEPTION RECEPTION REGISTRAR STORAGE TESTINGCOORDINATOR TESTINGLAB WORKROOM

Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite Guidance/CounselingSuite

420SF 100SF 250SF 150SF 100SF 100SF 100SF 100SF 100SF 100SF 150SF

357SF 111SF 247SF 125SF 111SF 111SF 111SF 111SF 111SF 111SF 167SF

Ͳ190SF 17SF 55SF Ͳ33SF 8SF 9SF 9SF 10SF 5SF 12SF 29SF

Ͳ45% 17% 22% Ͳ22% 8% 9% 9% 10% 5% 12% 19%

100SF 120SF 200SF 290SF 120SF 325SF 150SF 80SF 150SF


Ͳ7SF 8SF 362SF 279SF 1SF Ͳ6SF Ͳ33SF 33SF 14SF

Ͳ7% 7% 181% 96% 1% Ͳ2% Ͳ22% 42% 9%

DESIGN

REPORT

230SF 117SF 305SF 117SF 108SF 109SF 109SF 110SF 105SF 112SF 179SF 41SF 93SF 128SF 562SF 569SF 121SF 319SF 117SF 113SF 164SF

Ͳ9%

Ͳ2% Ͳ11% 5% 21% 52% Ͳ49% Ͳ2% 22% Ͳ11%

29

SPACE PROGRAM VARIANCE Space Category Room Name

ED SPEC

SD Area

Final Design Area

Variance

Percentage Variance

CareerCenterSuite CAREERCENTER

CareerCenterSuite

400SF

339SF

366SF

Ͳ34SF

Ͳ8%

StudentServices ASSISTANTATHLETICDIRECTOR'SOFFICE ATHLETICDIRECTOR'SOFFICE INͲSCHOOLALTERNATIVE RECEPTION RESOURCEPOLICEOFFICE STORAGE TOILET TOILET

StudentServices StudentServices StudentServices StudentServices StudentServices StudentServices StudentServices StudentServices

120SF 200SF 500SF 200SF 150SF 175SF 65SF 65SF



23SF 23SF 40SF 75SF 13SF Ͳ13SF Ͳ7SF Ͳ7SF

19% 12% 8% 38% 9% Ͳ7% Ͳ11% Ͳ11%

Clinic Clinic Clinic Clinic Clinic Clinic Clinic Clinic




Ͳ54SF 19SF 47SF 44SF Ͳ36SF 15SF 63SF Ͳ18SF

Ͳ12% 23% 31% 59% Ͳ10%

InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport InstructionalSupport

400SF 250SF 300SF 140SF 140SF 200SF 600SF 180SF 150SF 180SF 140SF 140SF 100SF



Ͳ84SF Ͳ6SF 18SF 8SF 27SF Ͳ18SF Ͳ37SF 55SF 46SF Ͳ16SF 13SF 29SF 20SF

Ͳ21% Ͳ2% 6% 6% 19% Ͳ9% Ͳ6% 31% 30% Ͳ9% 9% 21% 20%

Therapists Therapists Therapists

100SF 100SF 150SF

104SF 104SF 149SF

113SF 112SF 169SF

13SF 12SF 19SF

13% 12% 13%

Clinic CLINICWAITING/OFFICE EXAM/OFFICE PHYSICIAN/EXAMOFFICE RECORDSSTORAGE RESTAREA STORAGE TOILET TOILET InstructionalSupport CONFERENCEROOM GIFTEDPROJECTS INSTRUCTIONALSUPPORTFACULTYOFFICE INTERLUDEOFFICE LEAOFFICE OCCUPATIONALTHERAPY/PHYSICALTHERAPY RESOURCE RESOURCEOFFICE SOCIALWORKER/VISITINGTEACHER SPEECH/VISION TRANSITIONASSISTANTOFFICE TRANSITIONOFFICE TWICEEXCEPTIONOFFICE

Ͳ27%

Therapists INTERLUDEPSYCHOLOGIST INTERLUDETHERAPIST PSYCHOLOGISTOFFICE

30

WAKEFIELD

HIGH

SCHOOL

BOWIE

Space Category

Room Name

ED SPEC

SD Area

Final Design Area

GRIDLEY ARCHITECTS

Variance

Percentage Variance

TeacherSupport COPYROOM TEACHERSUPPORTͲSCHOOLADMIN TEACHERWORKROOMDEPARTMENTOFFICE TEACHERWORKROOMDEPARTMENTOFFICE TEACHERWORKROOMDEPARTMENTOFFICE TEACHERWORKROOMDEPARTMENTOFFICE

TeacherSupport TeacherSupport TeacherSupport TeacherSupport TeacherSupport TeacherSupport

100SF 560SF 400SF 400SF 400SF 400SF

135SF 674SF 403SF 425SF 425SF 425SF

142SF 585SF 518SF 393SF 366SF 402SF

42SF 25SF 118SF Ͳ7SF Ͳ34SF 2SF

42% 4% 29% Ͳ2% Ͳ9% 0%

Library/MediaCenter AUDIO/VISUALREPAIR CLOSET COMPUTERALCOVE CONFERENCEROOM CONFERENCEROOM CONTROLROOM/AUDIO/VISUALCLASSROOM FICTIONALCOVE LIBRARIANS'OFFICE/WORKROOM MEDIACENTER MEDIACLASSROOM MEDIASTORAGE MEDIAWORKROOM TVSTUDIO

Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter Library/MediaCenter

400SF

188SF

Ͳ114SF

Ͳ29%

900SF 120SF 120SF 350SF

818SF 121SF 128SF 403SF

62SF 111SF 160SF 39SF

7% 93% 133% 11%

300SF 6400SF 650SF 400SF 600SF 500SF

284SF 6588SF 521SF 454SF 487SF 459SF


0SF 411SF 10SF Ͳ37SF Ͳ130SF Ͳ50SF

0% 6% 2% Ͳ9% Ͳ22% Ͳ10%

1000SF

1320SF

Ͳ850SF

Ͳ85%

2000SF

1987SF

Ͳ264SF

Ͳ13%

200SF

179SF

Ͳ43SF

Ͳ21%

840SF

1229SF

33SF

4%

SUPPORTͲSERVICE AuxiliaryServices BOOKSTORAGE BOOKSTORAGE BOOKSTORAGE BOOKSTORAGE BOOKSTORAGE BOOKSTORAGE BOOKSTORAGE LARGEGROUPMEETINGROOM MECHANICAL SCHOOLSTORE STORAGE STORAGE STORAGE STORAGE STORAGE STORAGE TEACHERS'LOUNGE

FINAL

DESIGN

REPORT

AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices AuxiliaryServices

150SF 220SF 151SF 144SF 682SF 128SF 298SF 1736SF 440SF 157SF 370SF 157SF 163SF 279SF 121SF 354SF 873SF

31


ED SPEC

SD Area

Final Design Area

Variance

Percentage Variance

FoodServices CAFETERIA CAFETERIASTORAGE COLDSTORAGE CORRIDOR DRYSTORAGE FREEZER(WALKͲIN) JANITOR KITCHEN LOCKERROOM LOCKERROOM OFFICE SALADBARAREA SERVERY TOILET TOILET VENDING/CAFE

FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices FoodServices

CustodialSupport CUSTODIALLOUNGE CUSTODIALOFFICE JANITOR JANITOR JANITOR JANITOR JANITOR JANITOR JANITOR JANITOR JANITOR JANITOR LOCKERROOM LOCKERROOM SHOWER SHOWER SUPPLYCLOSET/STORAGEEQUIPMENT SUPPLYCLOSET/STORAGEEQUIPMENT SUPPLYCLOSET/STORAGEEQUIPMENT SUPPLYCLOSET/STORAGEEQUIPMENT TOILET TOILET

CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport CustodialSupport

GeneralBuildingSupport BICYCLESTORAGE CENTRALRECEIVING&STORAGE RECYCLING

GeneralBuildingSupport GeneralBuildingSupport GeneralBuildingSupport

11000SF 300SF 170SF

11496SF 276SF 190SF

300SF 200SF 50SF 1250SF 100SF 100SF 100SF 250SF 1450SF 65SF 65SF 200SF


300SF 100SF 0SF 0SF 0SF 0SF 0SF 0SF 0SF 0SF 0SF 0SF 300SF 300SF 80SF

281SF 101SF

0SF 0SF 1140SF

359SF 291SF 1335SF

65SF 65SF

62SF 62SF

1150SF

815SF

304SF 355SF 71SF

7352SF 241SF 191SF 503SF 221SF 207SF 50SF 1148SF 94SF 85SF 96SF 263SF 1723SF 43SF 43SF 662SF

Ͳ3648SF Ͳ59SF 21SF

Ͳ33% Ͳ20% 12%

Ͳ79SF 7SF 0SF Ͳ102SF Ͳ6SF Ͳ15SF Ͳ4SF 13SF 273SF Ͳ22SF Ͳ22SF 462SF

Ͳ26% 3% 1% Ͳ8% Ͳ6% Ͳ15% Ͳ4% 5% 19% Ͳ34% Ͳ34% 231%

481SF 126SF 84SF 83SF 46SF 46SF 76SF 47SF 70SF 46SF 64SF 45SF 237SF 237SF 46SF 49SF 283SF 294SF 82SF 312SF 56SF 56SF

181SF 26SF 84SF 83SF 46SF 46SF 76SF 47SF 70SF 46SF 64SF 45SF Ͳ63SF Ͳ63SF Ͳ34SF

60% 26%

Ͳ21% Ͳ21% Ͳ43%

283SF 294SF Ͳ1058SF

Ͳ93%

Ͳ9SF Ͳ9SF

Ͳ13% Ͳ14%

Ͳ177SF

Ͳ15%

702SF 973SF 359SF

32

WAKEFIELD

HIGH

SCHOOL

BOWIE

Space Category Room Name

ED SPEC

SD Area

Final Design Area

GRIDLEY ARCHITECTS

Variance

Percentage Variance

COREͲGENERALCLASSROOMS ESOL/HILTEXHILT CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM

ClassroomͲHILT ClassroomͲHILT ClassroomͲHILT ClassroomͲHILT ClassroomͲHILT

750SF 750SF 750SF 750SF 750SF

729SF 729SF 729SF 729SF 721SF

718SF 718SF 695SF 720SF 718SF

Ͳ32SF Ͳ32SF Ͳ55SF Ͳ30SF Ͳ32SF

Ͳ4% Ͳ4% Ͳ7% Ͳ4% Ͳ4%

ForeignLanguage CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM FOREIGNLANGUAGESTORAGE

ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage ClassroomͲForeignLanguage




Ͳ45SF Ͳ33SF Ͳ34SF Ͳ58SF Ͳ32SF Ͳ32SF Ͳ101SF 223SF

Ͳ6% Ͳ4% Ͳ5% Ͳ8% Ͳ4% Ͳ4% Ͳ14% 186%

ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish ClassroomͲEnglish




Ͳ32SF Ͳ32SF Ͳ66SF Ͳ32SF Ͳ32SF Ͳ64SF Ͳ32SF Ͳ32SF Ͳ32SF Ͳ53SF 81SF Ͳ27SF Ͳ32SF Ͳ32SF Ͳ66SF Ͳ5SF 42SF

Ͳ4% Ͳ4% Ͳ9% Ͳ4% Ͳ4% Ͳ9% Ͳ4% Ͳ4% Ͳ4% Ͳ7% 11% Ͳ4% Ͳ4% Ͳ4% Ͳ9% Ͳ1% 35%

English CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM ENGLISHCLASSROOMSTORAGE PUBLICATIONSOFFICE/STORAGE

FINAL

DESIGN

REPORT

33


ED SPEC

SD Area

Final Design Area

Variance

Percentage Variance

SocialStudies CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM

ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies ClassroomͲSocialStudies




Ͳ14SF Ͳ32SF Ͳ32SF Ͳ32SF Ͳ32SF Ͳ64SF Ͳ27SF Ͳ32SF Ͳ32SF 11SF 11SF Ͳ12SF

Ͳ2% Ͳ4% Ͳ4% Ͳ4% Ͳ4% Ͳ9% Ͳ4% Ͳ4% Ͳ4% 2% 1% Ͳ2%

INTERLUDECLASSROOM INTERLUDECLASSROOM INTERLUDECLASSROOM INTERLUDETIMEͲOUT

ClassroomͲInterlude ClassroomͲInterlude ClassroomͲInterlude ClassroomͲInterlude

750SF 750SF 750SF 200SF

788SF 765SF 753SF 279SF

800SF 931SF 718SF 194SF

50SF 181SF Ͳ32SF Ͳ6SF

7% 24% Ͳ4% Ͳ3%

ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation ClassroomͲSpecialEducation




Ͳ30SF Ͳ32SF Ͳ32SF Ͳ58SF Ͳ86SF Ͳ56SF Ͳ32SF Ͳ33SF

Ͳ4% Ͳ4% Ͳ4% Ͳ8% Ͳ12% Ͳ7% Ͳ4% Ͳ4%

BUSINESSLAB BUSINESSSTORAGE

LabͲBusiness LabͲBusiness

900SF 150SF

955SF 200SF

833SF 148SF

Ͳ67SF Ͳ2SF

Ͳ7% Ͳ1%

BUSINESSNETWORKCLASSROOM COMMUNICATIONSROOM COMPUTERLABͲRESOURCEROOM COMPUTERLABINSTRUCTIONAL COMPUTERLABINSTRUCTIONAL DISTANCELEARNING ITCSTORAGE TECHSUPPORTSPECIALIST WIRELESSLABSTORAGE

ITHub ITHub ITHub ITHub ITHub ITHub ITHub ITHub ITHub




Ͳ1SF Ͳ87SF Ͳ155SF Ͳ10SF Ͳ36SF 41SF Ͳ18SF 168SF Ͳ35SF

0% Ͳ44% Ͳ19% Ͳ1% Ͳ4% 6% Ͳ9% 168% Ͳ16%

Interlude

SpecialEducationSelfContainedClassrooms CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM CLASSROOM

COREͲLABS Business

ITHub

34

WAKEFIELD

HIGH

SCHOOL

BOWIE


ED SPEC

SD Area

GRIDLEY ARCHITECTS

Final Design Area

Variance

Percentage Variance

Science BIOLOGYLAB BIOLOGYLAB BIOLOGYLAB BIOLOGYLAB CHEMICALSTORAGE CHEMISTRYLAB CHEMISTRYLAB CHEMISTRYLAB CHEMISTRYLAB EARTH/SPACELAB EARTH/SPACELAB HILTBIOLOGYLAB PHYSICSLAB PHYSICSLAB PHYSICSLAB PREP PREP PREP PREP PREP PREP PREP SWINGLAB

LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience LabͲScience

1400SF 1400SF 1400SF 1400SF 400SF 1400SF 1400SF 1400SF 1400SF 1400SF 1400SF 1400SF 1400SF 1400SF 1400SF 200SF 200SF 250SF 250SF 200SF 200SF 200SF 1400SF



Ͳ136SF Ͳ127SF Ͳ179SF Ͳ179SF Ͳ11SF Ͳ133SF Ͳ170SF Ͳ169SF Ͳ133SF Ͳ175SF Ͳ173SF Ͳ124SF Ͳ161SF Ͳ120SF Ͳ159SF 151SF 158SF 85SF 85SF 137SF 139SF 146SF Ͳ133SF

Ͳ10% Ͳ9% Ͳ13% Ͳ13% Ͳ3% Ͳ9% Ͳ12% Ͳ12% Ͳ10% Ͳ12% Ͳ12% Ͳ9% Ͳ11% Ͳ9% Ͳ11% 76% 79% 34% 34% 68% 69% 73% Ͳ10%

Art Art Art Art Art Art Art

1650SF 1650SF 120SF 1100SF 100SF 400SF 200SF

1766SF 1178SF 115SF 1502SF 99SF 357SF 197SF

1727SF 1181SF 126SF 1489SF 93SF 359SF 180SF

77SF Ͳ469SF 6SF 389SF Ͳ7SF Ͳ41SF Ͳ20SF

5% Ͳ28% 5% 35% Ͳ7% Ͳ10% Ͳ10%

Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts Music/PerformingArts



58SF 182SF 124SF Ͳ117SF 17SF 3SF Ͳ106SF 33SF

38% 9% 19% Ͳ23%



208SF 2182SF 774SF 383SF 17SF 103SF 494SF 98SF 184SF 1716SF 68SF 60SF 67SF 79SF 73SF 138SF 2231SF 1005SF 92SF 619SF 69SF 243SF

SPECIALELECTIVESͲARTS Art ARTLABͲ2D ARTLABͲ3D KILN PHOTOGRAPHY/GRAPHICSLAB STORAGE STORAGE WORKROOM Music/PerformingArts BANDOFFICE BANDROOM BANDSTORAGE BANDSTORAGE CLOSET DRAMAOFFICE KEYBOARDINGLAB ORCHESTRAOFFICE ORCHESTRASTORAGE ORCHESTRAROOM PRACTICEROOM PRACTICEROOM PRACTICEROOM PRACTICEROOM PRACTICEROOM PRACTICEROOM STUDIOTHEATER STUDIOTHEATERMEZZANINE STUDIOTHEATERSTORAGE UNIFORMSTORAGE VOCALOFFICE WORKROOM/LIBRARY

FINAL

DESIGN

REPORT

16SF Ͳ32SF Ͳ40SF 2SF 14SF 8SF Ͳ12SF 31SF 1005SF Ͳ58SF 119SF 69SF 43SF

3% Ͳ18% 51% 1% Ͳ32% Ͳ40% 2% 21% 12% Ͳ8% 1% Ͳ38% 24% 22%

35


ED SPEC

SD Area

Final Design Area

Variance

Percentage Variance

Auditorium AUDIO/VISUALRACKS AUDITORIUM CLOSET CONTROLBOOTH COSTUMESTORAGE DIMMERROOM DRESSINGROOM LOGGIANORTH LOGGIASOUTH MEZZANINE PIANOSTORAGE SETSHOP SETSTORAGE STAGE STORAGE

Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium Auditorium

130SF 7000SF

191SF 7012SF

250SF 340SF 2200SF 400SF

274SF 495SF 2143SF 566SF

0SF 300SF 300SF 2850SF

0SF 653SF 411SF 2720SF

2600SF 0SF 750SF 6800SF 100SF 120SF 1200SF 1500SF 200SF 250SF 600SF 2200SF 0SF 475SF 475SF 300SF 2200SF 2200SF 975SF 2200SF 100SF 120SF 1200SF 1500SF 200SF 250SF 600SF 200SF 200SF 750SF 750SF

2819SF 0SF 789SF 6426SF 121SF 231SF 1259SF 1553SF 223SF 206SF 682SF 2143SF 0SF 401SF 401SF 170SF 2143SF 2143SF 836SF 2143SF 121SF 204SF 863SF 1548SF 187SF 196SF 555SF 225SF 642SF 652SF 652SF

150SF 13600SF 200SF

194SF 14546SF 362SF

100SF 125SF 100SF 1900SF

72SF 150SF 75SF 1892SF

99SF 4922SF 34SF 489SF 378SF 159SF 367SF 236SF 242SF 4915SF 112SF 902SF 97SF 2701SF 40SF

Ͳ31SF Ͳ2078SF

Ͳ24% Ͳ30%


96% 11% Ͳ93% Ͳ8%


201% Ͳ68% Ͳ5%

SPECIALELECTIVESͲPHYSICALEDUCATION PhysicalEducation ATHLETICSTORAGE ATHLETICTRAINER'SOFFICE ATHLETICTRAININGSUITE AUXILIARYGYMNASIUM BOYS'ATHLETICSHOWERS BOYS'ATHLETICTOILET BOYS'ATHLETICLOCKERROOM BOYS'PHYSICALEDUCATIONLOCKERROOM BOYS'PHYSICALEDUCATIONSHOWERS BOYS'PHYSICALEDUCATIONTOILET BOYS'TEAMROOM CARDIO/WEIGHTROOM CLOSET COACHESOFFICE COACHESOFFICE CONCESSIONS CORRIDOR CORRIDOR DRIVERSEDUCATIONCLASSROOM EXTERIORSTORAGE GIRLS'ATHLETICSHOWERS GIRLS'ATHLETICTOILET GIRLS'ATHLETICLOCKERROOM GIRLS'PHYSICALEDUCATIONLOCKERROOM GIRLS'PHYSICALEDUCATIONSHOWERS GIRLS'PHYSICALEDUCATIONTOILET GIRLS'TEAMROOM GYMNASIUMSTORAGE GYMNASIUMSTORAGE HEALTHCLASSROOM HEALTHCLASSROOM HYDROTHERAPY LAUNDRY MAINGYMNASIUM RECREATIONDEPARTMENTSTORAGE STORAGE TOILET WEIGHTROOMSTORAGE WOMEN'STOILET WRESTLINGROOM

PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation PhysicalEducation

3043SF 124SF 361SF 6974SF 137SF 214SF 927SF 1371SF 273SF 205SF 871SF 2191SF 9SF 475SF 521SF 187SF 85SF 44SF 979SF 561SF 137SF 215SF 998SF 1455SF 207SF 251SF 747SF 189SF 418SF 788SF 788SF 232SF 351SF 14659SF 595SF 71SF 109SF 166SF 99SF 1983SF

443SF 124SF Ͳ389SF 174SF 37SF 94SF Ͳ273SF Ͳ129SF 73SF Ͳ45SF 271SF Ͳ9SF 9SF 0SF 46SF Ͳ113SF Ͳ2115SF Ͳ2156SF 4SF Ͳ1639SF 37SF 95SF Ͳ202SF Ͳ45SF 7SF 1SF 147SF Ͳ11SF 218SF 38SF 38SF

17%

0% 10% Ͳ38% Ͳ96% Ͳ98% 0% Ͳ75% 37% 79% Ͳ17% Ͳ3% 4% 0% 25% Ͳ5% 109% 5% 5%

201SF 1059SF 395SF

134% 8% 198%

9SF 41SF Ͳ1SF 83SF

9% 33% Ͳ1% 4%

Ͳ52% 3% 37% 78% Ͳ23% Ͳ9% 37% Ͳ18% 45% 0%

36

WAKEFIELD

HIGH

SCHOOL

BOWIE


ED SPEC

SD Area

GRIDLEY ARCHITECTS

Final Design Area

Variance

Percentage Variance

AquaticsFacility CLOSET COMPETITIONPOOL FIRSTAID INSTRUCTIONALPOOL JANITOR JANITOR JANITOR LAUNDRY LOBBY MEN'SLOCKERROOM MEN'SSHOWERS MEN'STOILET MULTIͲUSEROOM NATATORIUMMEZZANINE OFFICE OFFICE POOL/MEETSTORAGE POOLCHEMICALROOM POOLDECK PUMP&FILTRATIONROOM RECEPTION STORAGE TOILET UNISEXCHANGING UNISEXCHANGING UNISEXCHANGING UNISEXCHANGING WOMEN'SLOCKERROOM WOMEN'SSHOWERS WOMEN'STOILET

Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics Aquatics

0SF 4505SF 150SF 2650SF 0SF 120SF 0SF 100SF 200SF 500SF 250SF 150SF 500SF 1000SF 120SF 120SF 300SF 180SF 6000SF 300SF 150SF 100SF 200SF 120SF 120SF 60SF 60SF 500SF 250SF 200SF

4808SF 150SF 1414SF 0SF 119SF 0SF 170SF 281SF 422SF 277SF 173SF 495SF 1161SF 143SF 143SF 168SF 172SF 7577SF 308SF 172SF 80SF 190SF 130SF 130SF 65SF 65SF 422SF 210SF 190SF

56SF 5201SF 153SF 3151SF 19SF 103SF 20SF 71SF 394SF 436SF 292SF 179SF 505SF 2364SF 140SF 160SF 482SF 176SF 7015SF 727SF 205SF 106SF 173SF 136SF 136SF 65SF 65SF 388SF 322SF 156SF

56SF 696SF 3SF 501SF 19SF Ͳ17SF 20SF Ͳ29SF 194SF Ͳ64SF 42SF 29SF 5SF 1364SF 20SF 40SF 182SF Ͳ4SF 1015SF 427SF 55SF 6SF Ͳ27SF 16SF 16SF 5SF 5SF Ͳ112SF 72SF Ͳ44SF

Ͳ29% 97% Ͳ13% 17% 20% 1% 136% 17% 33% 61% Ͳ2% 17% 142% 36% 6% Ͳ14% 14% 14% 9% 9% Ͳ22% 29% Ͳ22%

ENGINEERINGRESEARCH&DESIGNLAB ENGINEERINGRESEARCH&DESIGNLAB MATERIALSTORAGE STUDENTSTORAGE

TechEd TechEd TechEd TechEd

1000SF 1000SF 200SF 150SF

940SF 940SF 208SF 178SF

1039SF 1062SF 186SF 181SF

39SF 62SF Ͳ14SF 31SF

4% 6% Ͳ7% 21%

WorkandFamilyStudies CLOSET FOODMANAGEMENTLAB SEWINGLAB STORAGE

WorkandFamilyStudies WorkandFamilyStudies WorkandFamilyStudies WorkandFamilyStudies

1800SF 800SF 200SF

1635SF 1067SF 227SF

11SF 1859SF 734SF 181SF

59SF Ͳ66SF Ͳ19SF

3% Ͳ8% Ͳ9%

InstructionalSupportͲLifeSkills LIFESKILLSCLASSROOM LIFESKILLSCLASSROOM STORAGE/PREP TOILET

LifeSkills LifeSkills LifeSkills LifeSkills

750SF 750SF 170SF 80SF

729SF 730SF 162SF 74SF

716SF 740SF 180SF 64SF

Ͳ34SF Ͳ10SF 10SF Ͳ16SF

Ͳ5% Ͳ1% 6% Ͳ20%

15% 2% 19% Ͳ14%

TechEducation

FINAL

DESIGN

REPORT

37

SECTION

7

SUMMARY OF PROJECT COST

PROJECT COST SUMMARY Downey and Scott, LLC has prepared a final estimate of the

The anticipated schedule for the construction of Wakefield is for bidding

In addition, the Use Permit requires the removal of 4 existing guy

Construction Costs of the Wakefield High School Final Design. This

in Spring 2011, and completion of construction in Fall 2014. It is therefore

poles on school property for a cost of $950,000. There is currently a

estimate includes detailed site and building costs, including demolition,

necessary to escalate the current estimated costs to anticipate inflation

negotiation underway between APS and Arlington County to allow the

temporary facilities, and pathways etc. These hard construction costs

and changes in the marketplace to the midpoint of construction. We

guy poles to remain. If this agreement is reached, there will be no

are approximately $89 million in 2011 dollars. See estimate below.

have used an overall 6.5% to midpoint of construction.

additional cost.

In addition to these Construction Costs, there are several other

In addition to the base Construction Costs, a number of Alternates

The CIP includes $115,713,000 for the Wakefield Project to be bid in

were considered and their costs estimated. These include various

2011. The cost estimate illustrates that the project is within budget.

community amenities, and are estimated to cost $800,000 in 2011

The design is consistent with the approved net area of the Educational

dollars. If these Alternates are accepted, the projected 2011 Bid Project

Specification for Wakefield, and is comparable in gross area, amenities,

Costs, including escalation, would grow to roughly $116 million.

and finishes to Washington Lee and Yorktown High Schools. This

expenses which the Arlington Schools must pay to successfully execute the project, including all design and project management fees, the various general costs not born by the construction contract, and the movable furnishings and equipment provided by the school system. Inclusive of these, the total Project Cost for Wakefield in 2011 dollars is estimated to be roughly $107 million.

estimate reasonably demonstrates that the Final Design is within budget and meets equity goals established by the School Board.

38

WAKEFIELD

HIGH

SCHOOL

BOWIE

GRIDLEY ARCHITECTS

View of George Mason Entrance

FINAL

DESIGN

REPORT

39

SECTION

8

BUILDING SYSTEMS

LEED NARRATIVE

buses (similar to Reed School and Yorktown HS). MRc3: Determine the quantity of reused furniture for the project. EQp2: Document, via LEEDonline, the no smoking prerequisite EQc3.2: Provide IAQ testing as part of the base contract. EQc6.2: Provide temperature controls in each classroom. EQc7.2: Develop a thermal comfort survey, to be conducted after occupancy. IDc1.2: Develop a Green Housekeeping Program (similar to Reed ES). IDc1.4: Develop a Joint Use Agreement for Arlington County use of the classrooms, library, auditorium, & pool.

SSc4.3: To capture the fuel efficient vehicle credit, a minimum of 15% of the building’s total population must use alternative fuel school buses.

Summary of Green Building Recommendations The following analysis outlines the efforts required by APS to develop a LEED-NC Silver project.

• Green Building Overview Arlington Public Schools is committed to being a steward of its environment. The construction of Wakefield High School has been targeted to achieve Leadership in Energy and Environmental Design (LEED®) Silver certification upon completion. The Arlington Public

• • • •

Schools have asked the design team to identify the sustainable components appropriate for this project. Bowie Gridley Architects

•

retained Sustainable Design Consulting to evaluate the potential environmental performance of Wakefield High School and to make recommendations for additional consideration.

•

Based on an estimated building population of 1,600 students, APS must document that at least 240 students arrive via hybrid school buses. The documentation should verify that the minimum blend concentration is B20 (20% biodiesel, 80% regular diesel). 3. Water Efficiency Green buildings seek to reduce the need for potable and waste water infrastructure as well as recharging the local aquifer. Wakefield High School is currently pursuing all five points available in this category.

scientific standards, LEED emphasizes state of the art strategies for

1. Registration Fees

sustainable site development, water savings, energy efficiency,

LEED certification provides independent, third-party verification that a

4. Energy and Atmosphere Green buildings should ensure that the building’s systems function as intended, establish energy efficiency and optimization for the building envelope and systems, encourage use of renewable and distributed energy systems, and support early compliance with the Montreal Protocol for ozone protection.

materials selection and indoor environmental quality. LEED recognizes

building project meets the highest green building and performance

EAc6: One point can be obtained by providing at least 35% of the

achievements and promotes expertise in green building through a

measures. All certified projects receive a LEED plaque, which is the

building’s electricity from renewable sources as part of a 2-year

comprehensive system offering project certification, professional

nationally recognized symbol demonstrating that a building is

renewable energy contract. APS to consider purchasing green power.

accreditation, training, and practical resources.

environmentally responsible, profitable, and a healthy place to live

The LEED Green Building Rating System is a voluntary, consensusbased national standard for developing high-performance, sustainable buildings. LEED provides a complete framework for assessing building performance and meeting sustainability goals. Based on well-founded

LEED for New Construction and Major Renovations (LEED-NC) is a green building rating system that was designed to guide and distinguish high-performance commercial and institutional projects, with a focus on office buildings. This project will be submitted under version 2.2 (LEED-NC v2.2.), which allows a maximum of sixty-nine credits in six categories. To achieve LEED-NC v2.2 Silver certification, projects must meet the requirements of thirty-three credits and seven prerequisites. The following is a brief summary of the efforts required by Arlington County and Arlington Public Schools to develop a LEED-NC Silver project: • LEED Registration Fees: Provide the design review fee of $15,255 and the construction review fee of $3,814.

•

SSc4.3: Document the number of students who ride hybrid

and work. The LEED certification process consists of two reviews:

5. Materials and Resources

one at the end of the design phase, the second at the end of the

Green buildings reduce waste from construction and building occupants

construction phase. The US Green Building Council requires payment

and redirect recyclable material back to the manufacturing process.

prior to commencing the Design and Construction Reviews. As of

They extend the life cycle of existing building stock, in part by extending

January 1, 2010 the design review fees have increased. The Design

the life cycle of targeted building materials. They increase use of building

Review fee is $15,255 and the Construction Review fee is $3,814.

products with recycled content material and of locally manufactured building products. They reduce depletion of finite raw materials and

2. Sustainable Sites

encourage environmentally responsible forest management.

Green buildings should minimize the impact of placing a building on a site, with an eye to land use compatibility and biodiversity. Green buildings channel development to developed areas with existing infrastructure, rehabilitates damaged sites, and reduces impacts from automobile use. Green buildings optimize microclimate and minimize effects on neighboring sites of light, runoff, pollution, etc. SDC recommends the following actions to capture one Sustainable Sites credit.

MRc3: A point can be earned if salvaged, refurbished, or reused materials constitute at least 5% of the total value of materials on the project. Determine if used furniture will be used on the project and what the value of the furniture would be if purchased new.

40

WAKEFIELD

HIGH

SCHOOL

SECTION

BOWIE

8

6. Indoor Environmental Quality Green buildings should promote indoor air quality (IAQ) and prevent exposure to environmental tobacco smoke (ETS). Green buildings provide a high level of individual occupant control of thermal, ventilation, and lighting systems. They provide a connection between indoor spaces and the outdoor environment through the introduction of sunlight and views into the occupied areas of the building.

Chemical Contaminate

Maximum Concentration

• Formaldehyde • Particulates (PM10) • Total Volatile Organic Compounds (TVOC) • 4-Phenylcyclohexene (4-PCH) • Carbon Monoxide (CO)

50 parts per billion 50 micrograms per cubic meter 500 micrograms per cubic meter 6.5 micrograms per cubic meter 9 parts per million & e” 2 ppm above outdoor levels

EQp2: Smoking must be prohibited on school property. EQc3.2: A point can be achieved by developing and implementing an

•

indoor air quality management (IAQ) plan for the preoccupancy phase

cleaning chemicals and custodial training at a minimum.

•

that the contaminant maximum concentrations listed below are not exceeded. EQc6.2: One point is awarded if individual comfort controls (thermostats) or operable windows are provided for 50% of the building occupants and if comfort controls are provided in each shared multioccupant spaces including classrooms. EQc7.2: Implementation of a thermal comfort survey within 6 to 18 months after occupancy will earn one point. SDC recommends performing this survey as a means to provide the optimal working and learning environment for students and teachers. The survey will also provide insight as to the effectiveness of the installed energy systems. Adjustments made based on survey responses have the potential to save energy and money.

A statement of purpose describing what the policy is trying to achieve from a health and environmental standpoint, focusing on

of the project. SDC recommends conducting baseline IAQ testing after construction and prior to occupancy. The tests must demonstrate

GRIDLEY ARCHITECTS

A contractual or procedural requirement for operations staff to comply with the guidelines, including a written program for training and implementation.

•

A clear set of acceptable performance level standards by which to measure progress or achievement, such as Green Seal standard GS-37 (see www.greenseal.org) or California Code of Regulations, Title 17 Section 94509, VOC standards for cleaning products (go to www.calregs.com, click on ‘California Code of Regulations’ and perform a keyword search for ‘94509’). Concentrated cleaning products should be utilized when available.

•

Documentation of the program’s housekeeping policies and environmental cleaning solution specifications, including a list of approved and prohibited chemicals and practices. Demonstrate that the products used in the project are non-hazardous, and

7. Innovation in Design LEED provides a separate category of points for exceptional performance above the requirements set by the LEED-NC Green Building Rating System and/or innovative performance in Green Building categories not specifically addressed by the LEED-NC Green Building Rating System. SDC recommends pursuing the following innovation credits: Green Educational Program, Green Housekeeping Plan, and Joint Use Agreement.

have a low environmental impact. IDc1: To capture the Joint Use Agreement Innovation Credit, APS must document their agreement with Arlington County to share use of school facilities such as the play fields, classrooms, library, auditorium, & pool.

IDc1: To capture the Green Housekeeping Innovation Credit, APS will need to adapt their standard green housekeeping plan (currently being developed for Reed ES) to meet the needs of Wakefield HS. The housekeeping program will need to incorporate all of the following elements:

FINAL

DESIGN

REPORT

41

BUILDING SYSTEMS

42

WAKEFIELD

HIGH

SCHOOL

BOWIE

STRUCTURAL NARRATIVE

GRIDLEY ARCHITECTS

Basic wind speed = 90 mph 3 second gust.

the pool also requires some retaining structures transitioning to the

Occupancy Category IV

lower level of the gymnasium.

Basis of Structural Design

Building Category III.

A.

Criteria:

Wind importance factor = 1.15

The slab on grade will consist typically of 6 inches of concrete reinforced

1.

Building Code: International Building Code 2006.

Wind exposure = B

with welded wire fabric.

2.

Structural Steel Design: American Institute of Steel

Internal Pressure coefficient = +- 0.18.

Construction, Manual of Steel Construction – LRFD, 13th edition. 3.

The existing pool building immediately adjacent to the site will remain 3.

Welding: American Welding Society, Structural

Spectral Response Coefficient

Composite Slabs and Metal Deck: Specification

below grade gymnasium and locker rooms. Ss = 15.3% S1 = 5.1%

Site Class = C

latest addition).

Seismic Design Category = A

Structural Concrete Design: Building Code Requirements for Structural Concrete (ACI 318) and Commentary (ACI 318R).

B.

excavation retention system will be installed before excavation for the

Seismic Importance factor = 1.25

for the Design of Cold Formed Steel Structural Members (AISI5.

in operation until occupancy of the new school and pool, so an

Occupancy Category III

Welding Code – Steel (AWS D1.1) – latest edition. 4.

Seismic loads:

Design Loads: 40 psf + 20psf partitions

b. Offices:

50 psf

a. b.

st

1 Floor: st

Above 1 Floor:

100 psf 80 psf

d. Auditorium:

2.

a.

Fixed Seating:

60 psf

b.

Stage:

150 psf

c.

Catwalks:

40 psf

e. Gymnasium & Bleachers:

100 psf

f.

100 psf

Cafeteria:

g. Library Stacks:

150 psf

h. Heavy Storage:

250 psf

i.

Light Storage:

125 psf

j.

Mechanical rooms:

150 psf or actual equip. wt.

k. Roof:

20 psf min. + drifting snow load

l.

25 psf

Ground snow load:

Wind loads:

FINAL

Classrooms and Offices (Academic Wing): The structural system was selected in response to the typical classroom bay size consisting of two 32 foot classrooms divided by a

sarily detailed for seismic resistance.

15 foot hallway, spaced at 24 feet along the main classroom wings,

Analysis Procedure: Equivalent lateral force procedure.

with slightly larger spans in the science wing. The requirement of large column-free spaces in lower floors necessitates the use of column

4.

Minimum frost depth = 30 inches.

transfers in several locations, which are kept to a minimal depth by lightweight construction. The proposed structural system is a

C.

c. Corridors:

Structural Steel Framing System:

Basic Seismic force resisting system: Steel system not neces-

1. Live Loads (in accordance with IBC): a. Classrooms:

D.

Foundations:

The foundations will consist of a spread footing foundation system bearing on natural soils or new compacted fill for support of the proposed building. Maximum cuts and fills of about 20 feet and 5 feet, respectively, will be required to reach design subgrades based on the proposed site development plan. The new compacted fill should be of similar compressibility as the upper portions of the natural soils. Therefore, based on recommendations from the geotechnical engineer, the spread footings shall be designed for an allowable bearing pressure of 3,000 psf.

composite slab on metal deck with composite steel beams. This system will minimize the total building weight, resulting in optimal column transfer girder depths, and footing sizes. The repetitive classroom bays present the added benefit with steel of allowing the use of repetitive member sizes, and takes advantage of uniformity in detailing, fabrication, and erection. Long span members will be cambered to control the total deflection, and floor vibrations will be limited to no greater than a “slightly perceptible” level as defined by the AISC Steel Design Guide for Floor

The main gymnasium floor (Level 0) will be at an elevation 14’-8” lower than the main ground floor level of the school (Level 1). The elevation difference will require earth retaining basement/foundation walls. These walls will be reinforced concrete walls spanning between the floor levels and inter-connecting to a wall bracing system to distribute the lateral

Vibrations Due to Human Activity. The framed floors will be 3 ¼” of light weight concrete on 2" deep, 20 gauge galvanized composite steel deck for a total thickness of 5 ¼”. This slab assembly provides a 2 hr. fire rating without any applied protection. The steel beams and columns require fire protection.

soil pressure to the foundations. The lateral pressure from the water in

DESIGN

REPORT

43

BUILDING SYSTEMS Pool and Gymnasiums (Athletic Wing): The long span roof of the pool and gymnasium will consist of long span steel joists with depths ranging from about 5 to 7 feet. A larger truss girder, weighing approximately 300 plf will be required in the pool to support one end of the long span joists. This truss girder bears on fully grouted masonry encased steel columns, but elsewhere, where continuous walls exist from foundation to roof, steel floor framing bears directly on the masonry walls. A fire rated roof assembly is not required in these spaces where the ceiling is more than 20ft above the floor. Lateral Load Resisting Systems: The lateral load resisting systems in the academic wing typically consist of concentrically and eccentrically braced frames symmetrically distributed around the center of mass of the building, and extending from the foundations to the roof. All of the braced frames are located within the partition walls of the building, with at least three in the transverse direction and three in the longitudinal direction. The lateral loads imposed on the building are collected at each framed level and transferred to the braced frames through the concrete floor, which serves as a rigid diaphragm. Reinforced masonry bearing walls have been chosen over braced frames in the athletic wing of the school, due in part to the desire for interior and exterior masonry finishes in the gymnasiums and pool. This, coupled with the presence of high interior spaces with exterior walls that must resist wind loads made masonry bearing walls an effective system. Expansion joints will be detailed between the classroom building and the administrative and athletic wings of the building as well as between each side of the academic wing, running in the north-south direction through the theatre courtyard. This effectively creates three independent structures, each with its own lateral load resisting system. Because the buildings will be built as individual stand alone structures, the design and construction teams have the ability to phase construction, although the foundation system will be shared by adjoining building divisions.

44

WAKEFIELD

HIGH

SCHOOL

BOWIE

MECHANICAL, ELECTRICAL, PLUMBING NARRATIVE HEATING, VENTILATING AND AIR CONDITIONING SYSTEMS: A.

Design Basis

In general, engineering systems will comply with the Virginia Uniform Statewide Building Code (VUSBC) 2006, International Mechanical Code (IMC), National Fire Protection Association Codes and Standards (NFPA), National Electric Code (NEC), and the Uniform Accessibility Standards (UFAS). 1.

Outdoor Design Conditions: Summer: 950F db/760F wb

Baseline HVAC System Design:

1.

Heating & Cooling System:

The occupied areas of the building will be heated and cooled by watersource heat pump units with integral, water-cooled compressors. These units will be connected via a primary (production)/secondary (distribution) condenser water loop to one geothermal well field. Condenser water for the field will be circulated by a primary, basemounted centrifugal pump, located in the Main Mechanical Equipment Room at the basement level of Area A and backed up by a 100% standby pump. This primary Well Field loop will feed into a secondary condenser water loop circulating within the building. The secondary loop will also be served by a base-mounted centrifugal pump, backed up by a 100% standby pump. Pumps and equipment serving the secondary loop will be located in the Main Mechanical Equipment Room at the basement level of Area A. Total flow in the well field loop will be 2,110 GPM.

Winter: 110F db 2.

B.

Indoor Design Conditions: Classrooms, Assembly, Gymnasiums, Toilets, Offices, Lobbies & Corridors Summer: 760F db & 50%rh Winter: 700F db (No Humidity Control)

2.

Geothermal Well Field:

Locker Rooms Summer: 760F db & 50%rh Winter: 760F db (No Humidity Control)

Building cooling and heating load calculations indicate a peak building block load of 720 Tons (cooling) and 8,850 MBH (heating). The total loads on the well field are 630 Tons (cooling) and 7,570 MBH (heating) – the pool dehumidification unit serving the natatorium does not use the well field as a heat sink or heat source. Current design has a total of (448) 500 ft. deep wells at 25 feet apart. Average cooling capacity of each well is about 2 tons. The well field will be installed under the New Baseball & Softball Fields after the existing school is demolished.

Natatorium Summer:

3.

Winter:

84-870F db & 50 to 60%rh 82-850F Water Temperature 84-870F db & 50 to 60%rh 82-850F Water Temperature

Enclosed Stairwells, Janitor Closets, Mechanical Rooms & Electrical Rooms.Summer: 850F db & 60%rh Winter: 600F db (No Humidity Control)

FINAL

DESIGN

REPORT

Temporary System:

Because the Well Field will be located partially under the footprint of the existing building, it will not be possible to phase construction so that the heating and cooling loads for the new building can be met while the existing building is demolished and the Well Field is constructed. Consequently, a temporary heating and cooling plant will be provided by installing a temporary cooling tower to reject heat from the loop and boilers to inject heat into the loop while the Well Field is being constructed. Depending upon the final construction

GRIDLEY ARCHITECTS

phasing plan, it is assumed that the temporary equipment will need to be sized for the full cooling and/or heating capacities.

4.

HVAC Equipment:

All occupied areas of the building will be air conditioned except janitor closets and some electrical closets. Classrooms, offices, small meeting rooms, toilets, and corridors will be heated and cooled by individual Geothermal Heat Pump Units (HPs) located either above the corridor ceilings or in small closets accessed through a door from the corridor. Packaged Rooftop Heat Pump Units will provide heating and cooling to the larger spaces where applicable. Custom Rooftop Water-Cooled Heat Pump Units will serve the large, high-occupancy areas. Code required ventilation will be provided to the classrooms, offices, and other smaller spaces by Dedicated Outdoor Air Supply (DOAS) heat pump units located on the roof. These DOAS units will supply 100% outdoor air at neutral conditions either directly to the occupied spaces or to the return connections of the individual interior heat pump units. They will utilize total enthalpy wheels and/or sensible only heat exchangers to recover energy from the exhaust air stream and pretreat the incoming outdoor ventilation air. Code required ventilation will be provided to the larger, high-occupancy spaces directly through the Custom Rooftop Heat Pump Units. Occupancy calculations and outdoor air quantities will be based on the minimum required by the current edition of ASHRAE 62 or the amount required to maintain the proper pressure relationships in the areas served, whichever is greater. Additionally, CO2 sensors will be installed in the high-occupancy spaces to allow for reduced outdoor air volumes when the spaces are either empty or partially occupied.

45

BUILDING SYSTEMS 5.

Packaged Rooftop Heat Pump Units: HPs will generally have the following components: a. Filter/Mixing Box Section. b. DX Refrigerant System with scroll compressors and reversing valve. c. Water-source heat exchanger. d. Supply Air Return. e. Exhaust Air Fan. f. Air Flow Monitoring Station for Outdoor Air. g. Return side smoke detector.

The Packaged Rooftop Heat Pump units will have double wall construction with 1 inch, 3-lb./cf. density fiberglass or foam glass insulation. The fan/motor assemblies will be mounted on an internal restrained spring isolation base. The unit cabinets will be mounted on roof curbs with spring vibration isolation rails. 6.

Custom Rooftop Heat Pump Units: HPs will generally have the following components: a. Filter/mixing Box Section. b. DX Refrigerant System with scroll compressors and reversing valve. c. Water-source heat exchanger. d. Supply Air Return. e. Exhaust Air Fan. f. Air Flow Monitoring Station for Outdoor Air. g. Return side smoke detector.

DOAS units will generally have the following components: a. Filter Section w/ MERV-13 filtration on Return & Outdoor Air. b. DX Refrigerant System with scroll compressors and reversing valve. c. Water-source heat exchanger d. Supply Air Return. e. Exhaust Air Fan. f. Enthalpy Energy Recovery Wheel(s). g. Return side smoke detector.

The Custom Rooftop Heat Pump units will have double wall construction with 2 inch, 3-lb./cf. density fiberglass or foam glass insulation. The fan/motor assemblies will be mounted on an internal restrained spring isolation base. The unit cabinets will be mounted on roof curbs with spring vibration isolation rails. 7. Natatorium: The Natatorium will be served by a roof-mounted, air-cooled packaged DX Pool Dehumidification unit. A heat exchanger will be provided in the unit to utilize hot gas for pool water heating. When pool water heating is not required, heat from the dehumidification process will be rejected to the outdoors via an air-cooled condensing unit. Supplemental heating will be provided by a natural gas furnace. The unit will include an exhaust fan sized to maintain the Natatorium at a slightly negative condition to the surrounding areas of the building. 8. Main Locker Rooms: The Main Locker Rooms will be served by a roof-mounted, 100% outside air custom heat pump unit with a fixed plate frame heat exchanger. Configuration will be essentially the same as the DOAS units, except that it will be controlled to maintain space temperature and humidity set points rather than to supply neutral air. All air from the Locker Rooms will be exhausted through the heat exchanger to pretreat the incoming outdoor ventilation air. Additional heating and cooling will be provided by the unit DX system via the geothermal condenser water loop.

cooking equipment installed. Exhaust fans shall be wall-mounted, centrifugal upblast units with grease collection systems. 11. Duct Systems: General duct systems will be constructed from galvanized sheet metal. They will be shop fabricated to SMACNA Standards. Low-pressure ducts will be fabricated for 2-inch static pressure. Medium pressure ducts will be fabricated for 6-inch static pressure. In order to control noise in the air systems, all supply and return air ducts will be internally lined. Liner shall be 1-inch thick, 1.5-lbs./cf. density thermalacoustic liner with biocide coating. Exhaust ducts back to energy recovery units will also be insulated. All duct joints and seams will be sealed to a minimum SMACNA Class “B”. Ducts serving kitchen exhaust hoods shall be constructed from welded black steel where concealed and welded stainless steel where exposed to view. Ductwork conveying water vapor-laden air from dishwashers and from shower rooms shall be constructed from aluminum. 12. Piping Systems: Condenser water piping inside the building will be standard weight (schedule 40) carbon steel. Fittings 2" and smaller will be threaded; fittings 2-1/2" and larger will be welded. Heating hot water pipe 2" and smaller may be standard weight copper at the contractor’s discretion. Condensate drain piping will also be copper.

9. General Exhaust: The mechanical rooms and the electrical rooms will be ventilated by thermostatically controlled exhaust fans. Toilet rooms will be exhausted at a minimum of 75 cfm per water closet or urinal or 2 cfm per square foot of room area, whichever is greater. Janitor’s closet minimum exhaust rate shall be 100 cfm per service sink or mop sink. Exhaust air from toilet rooms and janitor closets will be exhausted via the DOAS units in order to recover the energy. 10. Kitchen Exhaust: Food prep areas in the Cafeteria will be provided with stainless steel, Type II Kitchen Exhaust Hoods as required to accommodate the

46

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Condenser water piping for the Geothermal Heat Pump system will be high-density polyethylene (HDPE) both within the building and for the well-field distribution piping outside the building. No insulation will be required. Insulation for hot and condenser water piping will be fiberglass or closedcell elastomeric type per ASHRAE 90.1 requirements. Insulation on chilled water piping must be provided with a continuous vapor barrier. 2" of closed-cell elastomeric insulation with an aluminum jacket and heat trace will be required where piping is exposed outdoors. All piping shall be labeled as to service and flow direction. All equipment shall be labeled. 13. Building Automation System (BAS): The BAS system will be an Automated Logic microprocessor-based Direct Digital Control System (DDC) complying with ASHARE Guideline 13-2000, and compatible with the existing energy management system utilized by Arlington Public Schools (APS). All control valves and damper actuators will be electric. This control system will monitor all HVAC equipment and lighting controls, as well as communicate with other independent building systems. The BAS will monitor all set points and alarms and be programmable as necessary to accommodate the fluctuating schedule required for this facility. A demand limiting program to shed load at critical times will also be part of the BAS package. All control inputs and outputs shall be monitored and controlled at a central monitoring PC station which ties into the APS central energy management system. 14. Miscellaneous: All systems will be tested and balanced for correct operation by an independent testing and balancing contractor. At minimum, Fundamental Commissioning will be performed on all energy related systems installed in the building. As part of the LEED certification analysis, an Enhanced Commissioning program will also be examined for this facility.

PLUMBING SYSTEMS: Design Basis: Plumbing systems shall comply with the Virginia Uniform Statewide Building Code (VUSBC) 2006, the International Plumbing Code (IPC), National Fire Protection Association Standards (NFPA), the National Electric Code (NEC), and the Uniform Accessibility Standards (UFAS). A.

General:

Plumbing systems shall include non-potable water for flushing fixtures, domestic cold water, domestic hot water, domestic hot water return, sanitary, waste and vent systems, acid resistant waste and vent systems, rainwater water and natural gas systems. The materials and systems shall be as described below. B.

Plumbing Fixtures:

1.

6.

Water closets: Wall-hung, elongated, white vitreous china, dual flush valves, 1.6/1.1 gallons per flush. Urinals: Wall hung, white vitreous china, 0.125 gallons per flush. Lavatories: White vitreous china, 0.5 gpm flow, battery powered automatic faucets. Sinks: Counter mounted stainless steel, 1.5 gpm flow restrictors. Electric Water Coolers: Wall mounted with integral compressors. Showers: Wall mounted, 1.5 gpm flow heads.

C.

Non-Potable Water Service:

2. 3. 4. 5.

A non-potable water service shall be extended from the cistern to the building to serve flushing fixtures (water closets and urinals). A filtration and pumping system shall be provided inside the building for this system. Water piping shall be a combination of CPVC and Type L copper (insulated with fiberglass insulation having an all-service jacket). D.

Domestic Water Service:

A domestic water service shall be extended to the building. The water service entrance shall include a reduced pressure principle type

FINAL

DESIGN

REPORT

GRIDLEY ARCHITECTS

backflow preventer. Domestic water piping shall be Type L copper (insulated with fiberglass insulation having an all-service jacket). Below slab piping shall be Type K copper or cement lined ductile iron. E.

Sanitary, Waste and Vent Systems:

The waste and vent systems will utilize cast iron pipe. Below slab on grade piping shall be standard weight hub and spigot piping. Above slab on grade piping shall be no-hub piping with standard couplings. F.

Acid Resistant Systems:

Acid resistant vent piping shall be chlorinated polyvinyl chloride (CPVC) with point-of-use acid neutralization tanks. Acid resistant piping located in plenum areas shall be PVDF flame retardant waste piping meeting the requirements for flame spread/smoke development rating for installation in plenum areas. G.

Domestic Hot Water Heaters:

The system shall use solar heating to heat water for the domestic hot water system The system shall consist of 53 panels of evacuated 47

BUILDING SYSTEMS tube (30 tubes in each panel) located on the roof. The system shall include all necessary piping, circulator pumps and storage tanks necessary for a complete system. The domestic water heating system shall also include gas-fired burners to provide heat during peak loads. Hot water shall be generated and stored at 160-degrees F. A master mixing valve shall be provided to temper water to 120degrees for general use and an additional mixing valve shall be provided to temper hot water to 140-degrees to serve the kitchen area. Hot water circulating pumps shall be provided to maintain temperature in the distribution system. H.

Rainwater Systems:

Rainwater piping will extend horizontally from the roof drains and shall extend through vertical conductors to the cistern. Rainwater piping materials will be the same as noted above for sanitary, waste, and vent piping. A secondary rainwater system shall use overflow roof drains and overflow scuppers as determined by the roofing system. The piping system for the overflow roof drains shall be a completely separate system from the primary rainwater system and shall terminate above grade. I.

Rainwater Harvesting:

A rainwater harvesting system shall be installed as a source for flushing water closets and urinals throughout the building and for irrigation purposes. The system shall consist of a separate piping system, clear and frequent identification markers on the piping, and signage in the restrooms and locker rooms describing the system and the fact that the flushing water is non-potable. See civil narrative for additional information. J.

48

Gas Service:

A new natural gas service shall be extended to the building and a separate gas service shall be extended to the natatorium. The gas systems inside the building will be 2.0 psi and shall be reduced to 0.5 psi at all gas appliances. Gas shall supply domestic water heaters, boilers, laboratory classrooms and kitchen equipment. The piping shall be Schedule 40 black steel with threaded fittings. Laboratory classrooms shall be provided with emergency shut-off valves.

FIRE PROTECTION SYSTEMS:

E.

Design Basis: Fire Protection systems shall comply with the Virginia Uniform Statewide Building Code (VUSBC) and National Fire Protection Association Standards (NFPA).

Current flow test data indicates that the municipal water pressure is inadequate to serve the automatic sprinkler system without the use of a fire pump. A fire pump, controller, and jockey pump will be included in the design.

A.

F.

General:

Fire Pump:

Materials:

Fire protection systems shall include automatic sprinkler systems and standpipe systems for the auditorium stage. The Contractor shall provide complete fire protection drawings and calculations for

Materials and equipment shall be provided in accordance with NFPA Standards. All materials and equipment shall be UL Listed or FM Approved.

review and acceptance by the authority having jurisdiction. The Contractor’s drawings and calculations shall be prepared using the Bid Documents as a Basis of Design.

1.

B.

2.

Automatic Sprinkler Systems:

The building shall be provided with a complete automatic fire protection system complying with NFPA 13, Standard for the Installation of Sprinkler Systems, 2007 edition. All rooms and areas of the building shall be protected. Occupancy Classification shall be Light Hazard except that mechanical rooms, janitor’s closets, storage areas, and kitchen food prep areas shall be classified as Ordinary Hazard, Group I occupancies. Stages shall be classified as Ordinary Hazard, Group II occupancies. C.

Kitchen Exhaust Hoods:

Kitchen exhaust hoods located in cafeteria food prep areas shall be provided with automatic fire suppression systems as part of the hood installation. D.

Stage/Auditorium:

Standpipes shall be provided at stages in accordance with the Virginia Construction Code. The standpipe system shall be a Class III system (1-1/2-inch and 2-1/2-inch hose valves for trained building occupants and fire department use). Hose valves shall provide 500-gpm flow at the most remote hose valve.

3.

Pipe: Schedule 40 black steel with threaded fittings for pipe sizes 2-1/2-inch and smaller. Schedule 10 black steel with mechanical joints for pipe sizes 3-inch and larger. Sprinklers: Recessed sprinklers with chrome finish, quick response type. Concealed sprinklers shall be used in limited public areas in keeping with the architectural aesthetics of these areas. Standpipe Hose Valves: Rough brass finish, recessed cabinet.

ELECTRICAL SYSTEMS: Design Basis: In general, systems will comply with the Virginia Uniform Statewide Building Code (VUSBC), National Fire Protection Association Codes and Standards (NFPA), and the National Electrical Code (NEC). A.

Service:

A new main service distribution switchboard will be required to serve the new High School. Based upon the preliminary electrical loads, a 5000 amp, 480Y/277 volt, 3 phase, 4 wire system is the estimated service size. Three additional smaller services will be required for the project. One will connect to the Concession/Restroom Building and will serve all outbuildings. It will be 400 amp, 480Y/277 volt, 3 phase, 4 wire. The other two services will feed street lighting circuits and each will be 100 amp, 120/240 volt, 1 phase, 3 wire. Dominion Power will provide the primary and pad or pole-mounted transformers.

WAKEFIELD

HIGH

SCHOOL

BOWIE

B.

Power System:

GRIDLEY ARCHITECTS

refrigerators, and other code specified loads and loads as designated by the Owner. All loads not code defined as “emergency” shall be

All conductors will be stranded copper with THHN/THWN insulation on secondary service conductors and all building wiring. Panelboards for light and power will be of the dead front, automatic circuit breaker type. Wiring devices will be specification grade 125VAC, 20A, back and side wired. Switches will be rated at 277 volts. In general, lighting, HVAC equipment, and other large loads will be fed at 277/ 480 volts, and receptacles, small mechanical equipment, and special kitchen equipment will be fed by the 120/208 volt system.

served by the standby system. Emergency and Standby systems shall be served by their own transfer switches and breakers on the generator. The generator’s fuel source shall be diesel (double wall, skid-mounted tank). F.

Raceway & Fittings:

All wiring shall be installed in intermediate metal conduit (IMC), electrical metallic tubing (EMT), or flexible metal conduit, subject to

C. Lighting Systems: All lighting will be designed to comply with IES recommended footcandle levels. Lighting will be fluorescent throughout the facility unless special needs dictate the use of some other lighting source. Classroom lighting will be designed to 60 footcandles maintained at 2.5 feet above finished floor and 70% VCP. Exit and egress lighting shall be supplied by the emergency transfer switch and power system. Exit fixtures will be LED type. Classrooms will utilize fluorescent fixtures with T-8 lamps and electronic ballasts. T-5 lamps will be utilized elsewhere as applicable. Interior lighting controls will be accomplished with local, multi-level switching and with occupancy sensors. Classrooms will be wired with interior and perimeter lighting zones to take advantage of daylighting through the exterior glazing. Building exterior lighting will be controlled through the Building Automation System via lighting contactors and an astronomical clock program. D.

the restrictions of the National Electrical Code (NEC). Threaded rigid metal conduit shall be hot dip galvanized. Raceways shall be installed as a complete system and shall be continuous from outlet to outlet, unless noted otherwise. Raceways shall be mechanically and electrically connected to all boxes and fittings. In general, conduits 2 inches or larger and conduit in floor slabs shall be heavy wall rigid type. The minimum size conduits used shall be 3/4 inch. Larger sizes shall be used as required by the NEC. Conduit shall be run exposed in mechanical equipment and utility spaces. Elsewhere, it shall be concealed above ceilings, in shafts, and in furred spaces. A nylon pull cord shall be installed in all conduits in which conductors are not installed. A 10 inch length of the fish cord shall extend out of each end of the conduit. Flexible liquid-tight conduit shall be used for connections to all motors and any equipment where required because of vibration or relative motion. All raceways shall be concealed wherever possible. Conduit shall be the size required for the conductors but in

Daylighting Control:

no case shall it be smaller than ¾ inch trade size.

In the large public spaces where ample natural lighting is available through glazing, the artificial lighting systems will be zoned and wired via lighting contactors. A daylighting controller will monitor light sensors in the space in order to maintain a set lighting level utilizing as little artificial lighting energy as possible. E.

TYP. CLASSROOM WING PIPING DIAGRAMBASELINE SYSTEM

Emergency and Standby Power:

Emergency power and standby power will be supplied by a generator. Generator power will be provided to exit lights, egress lighting, Fire

G.

TYP. CLASSROOM WING PIPING DIAGRAMGEOTHERMAL SYSTEM

Wire and Cable (600 Volts and Below): H.

Branch circuit wiring for power and light shall generally be type THW or THWN with type THHN being used in wiring space inside fluorescent fixtures and for connections to recessed fixtures. All conductors No. 10 AWG and smaller shall be solid copper. All conductors No. 8 AWG and larger shall be stranded copper. All conductors shall be insulated for 600 volts. All wire and conduit sizes shall be based upon the use of type THW insulation.

Pull and Junction Boxes:

Pull boxes shall be installed at all necessary points, whether indicated on the drawings or not, to prevent injury to the insulation or other damages that might result from pulling resistance or for other reasons necessary to proper installation. Minimum dimensions shall not be

Alarm System, communications equipment, kitchen freezers &

FINAL

DESIGN

REPORT

49

BUILDING SYSTEMS less than NEC requirements and shall be increased if necessary for practical reasons or where required to fit a job condition. All boxes shall be galvanized steel, rigidly secured in position to the structure. Cabinets required for use in various systems for the mounting of accessories or terminals, relays and the like shall be constructed of code gauge galvanized steel. Backboards shall be provided for the mounting of all accessories, of minimum ¾-inch plywood and painted to match the cabinet.

L.

Safety switches:

Fused and un-fused safety disconnect switches shall be provided as

The building’s main distribution equipment shall consist of a main

required. Such switches shall be of the proper size and number of

service distribution panel with bracing to accommodate the available

poles for use with the equipment requiring the switch. Safety switches

fault withstand current as required. The distribution panel will be utilized

shall be the enclosed, heavy-duty type with quick-make, quick break

to feed large mechanical loads, and 277/480 volt loads via additional

mechanism and external padlocking operating handle. All switch

panels located in the facility.

enclosures shall be NEMA Type 1, except switches exposed to the weather shall have NEMA Type 3R, rain-tight enclosures.

I.

O. Distribution Equipment:

P.

Molded Case Circuit Breakers:

Switch and Outlet Boxes: M. Grounding:

ABI, ANSI, UL and NEC. This section applies to all MCCB whether

Provide boxes, complete with cover or device plate for switches, receptacles, or other devices, or where required for joining branch circuit wiring. Conduit bodies may be used on exposed conduit, where allowed by the NEC.

Circuit breakers shall conform to the latest edition of NEMA Publication

A complete grounding and bonding system shall be provided. Grounding shall be provided and tested in accordance with the National Electrical Code as indicated on the drawings.

individually enclosed, group mounted or part of other equipment. Interrupting ratings shall be as scheduled but shall not be less than 10,000 amps rms symmetrical at the applied voltage. Trips shall be thermal-magnetic with inverse time delay and instantaneous

J.

Wiring Devices:

N.

Panelboards:

timecurrent characteristics. Breakers shall be bolt-on type only.

Wiring devices shall be complete with all mounting devices and other

Panelboards shall be dead front, automatic circuit breaker type. All

appurtenances where required. All wiring devices shall be the products

panelboards shall conform to the requirements established by UL, NEMA

of a single manufacturer except as specifically stated otherwise. All

and the NEC. Series rated panelboards are not acceptable. Bus bars

Fuses shall conform to the latest editions of NEMA, UL and NEC.

light switches shall be toggle type, rated 20 amps, 277 volt AC,

shall be copper. Load center type panelboards are not acceptable.

Furnish and install complete sets of fuses for all switches requiring

specification grade, installed 42 inches above finished floor, unless

Q. Fuses:

same, including those required in switchboards and motor controllers.

otherwise noted. Switches shall be single pole, 3-way or 4-way as indicated. All receptacles shall be duplex outlets, 125 volt AC, 20

R.

Motor Starters (Controllers):

amp, two pole, three wire grounding type, specification grade, installed 18" above finished floor unless noted. Special and heavy-duty type receptacles shall be provided as suitable for the intended use. Pressed galvanized steel outlet boxes shall be used for indoor and dry locations. Cast iron with threaded hub outlet boxes shall be used for outdoor, exposed and wet locations. K.

Supporting Devices:

All conduits shall be properly supported in accordance with the latest edition of the NEC. Equipment shall be installed to maintain headroom, to provide neat mechanical appearance, and to support equipment loads required.

All motors shall conform to the latest applicable standards of NEMA, ANSI and IEEE for type, size and duty as specifically applied. Motors shall be selected to avoid exceeding the motor’s full rated load when the driven equipment is operating at specified capacity under the most severe conditions likely to be encountered. Isolated motors shall be protected by means of separate fusible combination motor starters. Motors 1/2 horsepower and larger shall be served at 480 volts, 3 phase and motors smaller than 1/2 horsepower shall be served at 120 volts, single phase. Motor starters shall be line-voltage magnetic type with suitable thermal overload relays, reset, handoff auto selector switches, and indicating lights on the cover with 120-volt AC control. Manual starters shall be provided complete with thermal overload protection in all phases. Each shall be equipped with a quick-break operating mechanism and silver contacts, in NEMA 1 enclosure.

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GRIDLEY ARCHITECTS

The Rainwater Harvesting system detailed in the Plumbing section S.

Light Fixtures and Accessories:

Lighting will be installed in accordance with the recommended IES Standards. All fixtures shall be furnished complete with sockets, internal wiring, leads, trim, hangers, supports, frames, ballasts, etc., as applicable. All fixtures shall be supported by means of adequate hangers with attachments to building construction independent of any ceiling system. A complete system of artificial interior lighting shall be provided for all spaces. In general, all interior lighting shall be fluorescent with the possible exception of certain areas where incandescent lighting shall be used for special lighting applications. Fluorescent lamps and ballasts shall be energy saving types where available. Local switches for control of lighting shall be provided to serve each individual space. Occupancy sensors will be installed in smaller restrooms and toilets. Other areas may use occupancy sensors as the room or area dictates. Lighting shall be provided for building exterior. Emergency lighting and exit lighting shall be provided for all paths of egress from the building. Generator circuits shall be utilized for egress lighting.

The cable television system will be designed, furnished, and installed by Arlington Public Schools. The location of junction boxes with empty conduit and pull strings will be coordinated with the appropriate school system personnel. The telecommunications system will consist of an empty conduit system with pull wires that will be utilized by the School System to install all telecommunications cabling systems. All horizontal voice/ data and CATV outlets will be mounted to 4-11/16" square back boxes with single-gang tile rings. Each back box will be routed to accessible ceiling space utilizing 1" EMT conduit. U.

Lightning Protection System:

A complete lightning protection system will be installed on the High School. System shall be installed per UL 96 and NFPA 780. V.

Solar Photovoltaic System:

A Solar Photovoltaic System will be installed to provide approximately T.

Sound and Intercommunication System:

non-potable “grey” water for toilet fixture flushing to achieve this credit. Preliminary calculations indicate the use of stored rainwater for flushing purposes will save approximately 866,000 gallons of potable water per year. B.

WEc3.1 and c3.2 – Water Use Reduction:

The design anticipates the use of high-efficiency, low water use plumbing fixtures to achieve both the 20% and the 30% Water Use Reduction credits. C.

EAc1 – Optimize Energy Performance:

Preliminary energy use calculations indicate that, combined with the proposed lighting controls, the Geothermal HVAC System Design should result in at least 28% energy cost savings over the minimum performance rating required by ASHRAE Standard 90.1. That would earn 6 points under this credit.

90 kva of renewable energy to earn 1 point under LEED Energy and Atmosphere Credit EAc2.

The sound and intercommunications system will include an equipment rack with multi-media players, AM/FM tuner, amplifier, and a telephone interface located in the main office. Administration control stations will be located in the Principal’s office, Vice Principal’s office, and the general office area; call-in switches in all occupied spaces; ceiling mounted speakers, where applicable, and horn type in all other areas; microphones and microphone outlets.

(and further described in the Civil Narrative) will allow for the use of

W. Fire Alarm: An addressable fire alarm system will be provided, designed and installed per NFPA 72. The system will be monitored by off-site by a

D.

EAc2 – On-Site Renewable Energy:

The use of solar hot water heating panels to preheat water for the domestic hot water system and photovoltaic panels to generate electricity will be included in the Wakefield High School design. They will be sized to offset at least 2.5% of building energy cost and will achieve 1 point under this credit.

listed central station service. Initiating devices will include sprinkler water flow and tamper switches, area smoke detectors, area heat detectors, duct smoke detectors, and manual pull stations. Area smoke

Auxiliary sound systems consisting of wiring, separate speakers, and

detectors will be provided at the fire alarm control panel, in storage

microphone jacks will be located in the Auditorium, Cafeteria, Main

rooms, and in electrical/mechanical rooms. Duct smoke detectors

Gymnasium, and Music Rooms.

will be provided for fan shutdown as required by the IMC. An exterior

Given the sophisticated nature of many of the building systems that

sprinkler water flow bell will be provided near the sprinkler main.

will be incorporated into this design, a full Commissioning effort is

The security system will be designed, furnished, and installed by others. The location of junction boxes with empty conduit and pull

anticipated, which will achieve this credit. F. A.

DESIGN

REPORT

EAc3 – Enhanced Commissioning:

MEP LEED STRATEGIES:

strings will be coordinated with the security systems contractor.

FINAL

E.

EAc4 – Enhanced Refrigerant Management:

WEc2 – Innovative Wastewater Technologies:

51

BUILDING SYSTEMS Refrigerants with low Global Warming and Ozone Depletion Potential will be utilized in order to meet the requirements of this credit. G.

EQc1 – Outdoor Air Delivery Monitoring:

The HVAC Desing includes demand control of ventilation in highoccupancy spaces and direct outdoor airflow measurement to earn this credit. H.

EQc6.1 – Controllability of Systems: Lighting:

The lighting controls proposed for this building will meet the requirements of this credit. I.

EQc7.1 – Thermal Comfort: Design:

As part of either the Baseline or the Alternative Geothermal HVAC System Design, the requirements of ASHRAE Standard 55 will be met to achieve this credit.

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LANDSCAPE NARRATIVE General Description of Site and Landscape Improvements The general design concept for the project is to replace or maintain-inplace the existing school buildings, sports and recreational facilities, and site support facilities such as parking and service. The proposed project also includes, as alternates, additional site facilities requested by Arlington County and community organizations, as well as public infrastructure improvements, such as streetscapes, required by Arlington County as part of the modified use permit process.

S. Chesterfield Road, and S. George Mason Drive that are adjacent to other proposed new work.

•

Vehicular access to the site will be from existing public roads, as follows:

•

convenience spaces adjacent to the service road from S. Chesterfield Road, including 4 handicapped designated spaces; for a total of 261 spaces on site. The existing school site has 233 parking spaces.

•

Total curbside parking adjacent to the site will be 97 spaces (including 4 designated handicapped spaces). The existing site has 87 curbside spaces.

The main vehicle entrance to the site will be from S. Dinwiddie

•

way road out. This lot will contain 236 car parking spaces,

32 additional overflow spaces are available as curbside parking in the bus loop during evenings and weekends.

including designated handicapped spaces. There will be a two lane wide, one-way bus loop separate from and outside the

Pedestrian Access and Building Entrances

parking lot for bus pick-up and drop-off. The bus loop can

The general arrangement of the site will consist of the following: A new school building, including athletic facilities and pool, constructed on the existing sports fields on the west side of the site New baseball and softball fields; new small practice field, including general recreational space, constructed on the existing school building site on the east side of the site. Baseball, softball, and the small practice field will be a irrigated and lit with sports field lighting.

Total parking on the site will consist of 236 spaces in the main parking lot, including 8 handicapped designated spaces; 26

Vehicular Access and Parking

The project will be phased to keep the existing school buildings in operation while the new facilities are being constructed, and to also keep open existing sports and recreational facilities during construction, to the maximum extent possible.

•

•

Relocation of the existing cell phone tower and building to a location behind the existing stadium pressbox.

Street into the main parking lot via a one-way road in and one-

•

GRIDLEY ARCHITECTS

accommodate the16 required busses staged for afternoon pick-

Pedestrians will have access to the new building via paved concrete

up without interfering with parking lot access. The bus loop can

walkways from the public sidewalk system that parallel adjacent

also be used for single-side curbside parking during evenings and

roadways, and also from walkways from site parking lots.

weekends. The exit for this entrance will align with existing S. 14th Street, immediately to the south across S. Dinwiddie Street.

•

A secondary vehicle entrance to the site will be from S. Chesterfield Road, at the same location of an existing entrance across from

Pedestrians will enter the building at three main building entrances, as follows:

•

The main entrance to the school on S. Dinwiddie Street will front

S. Buchanan Street. This entrance will lead to 24 new

directly on a new public sidewalk. This entrance will have broad

convenience parking spaces, including designated handicapped

stairs as well as grade-accessible 6' wide sidewalks leading to an outdoor entrance plaza.

spaces, for access to the recreational fields adjacent to S.

•

New restroom/concession building adjacent to baseball and softball fields.

Chesterfield Road. The road will also lead down to the existing stadium and tennis courts for maintenance access. Two additional

the main parking lot there will be a 15' minimum width sidewalk

•

A new main parking lot in the center of the site, adjacent to S. Dinwiddie Street, for school and recreational fields parking.

designated handicapped spaces will be provided for the tennis

leading from the public sidewalk on S. Dinwiddie Street to the

courts at the end of this road.

entrance doors. There will also be an entrance plaza leading

• • •

Maintenance of the existing stadium field and track, existing tennis courts, and existing sports fields north of the existing school.

•

•

At the student entrance and athletic entrance to the school from

from the main parking lot to these entrances. This entrance plaza

Service vehicle access to the school will be from a vehicular

will cross the bus loop at walkway grade, and will have bollards

access road off S. George Mason Drive. This service road can

to separate the adjacent sidewalks from the bus lanes.

New ticket booth building, stadium entrance, and walkways around the south end of the existing track.

accommodate the various sized delivery trucks that come to the

New streetscapes, consisting of sidewalks, street trees, lighting, and curbside parking, along the portions of S. Dinwiddie Street,

a service court in which the service vehicles can turn to back into

be a paved entrance plaza. Access to this entrance plaza will

a loading area and also turn around to exit via the same service

be from the public sidewalks along S. George Mason Drive, either

road.

from the north via a paved 8' wide concrete sidewalk or from the

FINAL

DESIGN

REPORT

school. The service area at the west side of the school will contain

•

At the S. George Mason Drive entrance to the school, there will

53

BUILDING SYSTEMS west via stairs down from S. George Mason Drive. An 8' wide accessible route from the sidewalk west of the entrance plaza will loop down to meet the sidewalk coming into the site from

•

the north.

a short cut route through the site.

well as Arlington Parks and Recreation for their programs.

The new walkway through the site north of the school will have a

•

5’ or 10’ wide edge of reinforced turf paving to provide a minimum

ticket booth and new concession building will be constructed

fire lane width of 20’, in conjunction with the adjacent paved

west of the field, in response to the relocation of the main entrance

concrete walkway.

to the field to this side. A new wide concrete walkway will be

In addition to the three main entrances, there will be access from the athletic facilities inside the building to the adjacent fields through a

constructed south of the existing track to allow spectators to move around the field to the grandstands on game day. New 8'

Public Streetscapes

lower entrance on the north side of the building. This access will also lead to restrooms inside the building that will be available for events at the stadium.

The existing stadium field and track will be maintained. A new

high black vinyl-coated chain link fence will be installed to The project will include development of new public streetscapes along

enclose the stadium field and track in areas where the existing

S. Dinwiddie Street and portions of S. Chesterfield Road and S. George

fence is disturbed by new construction. A new entrance gate to

Mason Drive. The streetscape improvements include the following:

this field will be added at S. Chesterfield.

Pedestrian access to the site facilities will on paved concrete walkways from the pubic sidewalks that parallel adjacent roadways and also

•

New concrete curb and gutter.

from walkways from site parking lots, as follows:

•

New concrete driveway entrances for all vehicle crossings at

•

sidewalks.

Access to the new baseball and softball fields will be on 10' wide walkways leading from the main parking lot on S. Dinwiddie Street

•

and the convenience parking lot on S. Chesterfield Road. These walkways will be accessible routes to the fields and through the

•

site and open for public access.

•

Access to the stadium will be from a new 15' wide accessible

black vinyl-coated chain link fence will be installed to enclose the field in areas where the existing fence is disturbed by new

Curbside parallel parking spaces, including designated

Street trees at approximately 35' on center. At areas adjacent to tree panels; at areas adjacent to the school the street trees

This walkway will also provide an occasional service vehicle route

will be in 5' wide by 12' long tree boxes with tree grates.

•

The existing multi-purpose field in the northeast corner of the site

crossings.

to an entrance to the stadium north of the new school building.

construction.

•

A new, natural grass practice field will be constructed west of the existing multi-purpose field and north of the existing tennis courts. This field will replace an existing field at this location, and will be enlarged to a field size of 200' by 125', with additional grass space outside this rectangle. The school’s shot put and discus circle

Concrete sidewalks with a minimum clear dimension of 10' wide

will be relocated to this outside area. A new concrete retaining

in front of the school on Dinwiddie; 8’ wide adjacent to the sports

wall, varying in height from 3' to 14.5', will be constructed to allow

fields on Dinwiddie and S. Chesterfield; 8’ wide on S. George

the field to be enlarged. New 8' height black vinyl-coated chain

Access to the existing tennis courts will be from a new 8' wide

Mason adjacent to the school; and 6’-4” on S. George Mason

link fence will be installed to enclose the field in areas where the

accessible walkway from the adjacent handicapped designated

north of the school.

move around the field to the grandstands on game days.

parking spaces, via a new 7' wide walkway adjacent to the stadium access road, and via new 8’ wide stairs from the walkway through the site adjacent to the baseball and softball fields.

•

•

adjacent to S. Chesterfield Road will be maintained. New 8' height

the recreational fields these trees will be in 5' wide continuous

and plaza south of the existing stadium to allow spectators to

•

to these courts are described in the section ‘Pedestrian Access’.

handicapped spaces.

•

The existing tennis courts will be maintained. New access routes

Accessible route ramps and crosswalk markings at all street

walkway from the main parking lot on S. Dinwiddie Street down

to the lower athletic building entrance. There will be a new walkway

•

•

Arlington County ‘Carlyle’ street lights.

Sports and Recreation Facilities

A new 10' wide accessible route on a paved walkway will bisect

existing fence is disturbed by new construction.

•

A new softball field will be constructed on the east side of the site adjacent to S. Chesterfield Road. This field will have 60' base paths with skinned infield; 200' foul lines and center field dimensions including a 15' wide warning track; and 24' of foul ball

the site north of the new school building. This walkway will allow

Existing sports and recreation facilities on the site will either be preserved

full pedestrian access through the site for access to the

in place or replaced as part of the school construction. These facilities

space. The field will be enclosed by an 8' high black vinyl-coated

recreational facilities as well as for pedestrians who want to take

are as follows and will be used both by Arlington Public Schools as

chain link fence and have a 25' height black vinyl-coated chain

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link backstop extending from first base and third base. The field

•

A new practice and physical education field, approximately 120' by 65', will be located adjacent to the athletic wing of the building.

bleachers on concrete pads per side; black vinyl-coated chain

This field will be used for various athletic programs, and can also

Furnishings on the site will include bicycle racks, benches, trash

link team ‘dugout’ enclosures with fabric roof, and bullpen and

be used as a team warm-up space or reception space on game

receptacles, and flagpoles.

batting cages on each side of the field. There will be a small field

days when the stadium field is in use.

and emergency vehicle access to the field. The field will have a center field flagpole and outfield illuminated scoreboard. The field will be lit with sports field lighting with time clock and electronic

Benches will be 6' length metal benches with backs and arm rests. Building Courtyards

Trash receptacles will be metal construction with tops and liners. Both benches and trash receptacles will be located at building

The project includes three outdoor courtyards for the new school

entrances, building courtyards, and along walkways through the public

building.

parts of the site. Flagpoles will be 35' aluminum standards with internal

controls. The field will have automatic underground irrigation

halyards and be located in the student entrance plaza to the school

system.

At the student entrance to the school from the main parking lot there

and at each ball field. Bicycle racks will be Arlington County standard

A new baseball field will be constructed on the east side of the

will be a demonstration rain garden courtyard. This courtyard will

metal loop racks and will be located at each of the three entrances to

site adjacent to S. Chesterfield Road. This field will have 90'

function as part of the project’s storm water management system,

the school and at each ball field.

base paths with grass infield; 325' foul lines and 380' center field

but will also be used to demonstrate the storm water management

dimensions including a 15' wide warning track; and 60' of foul ball space. The field will be enclosed by an 8' high black vinylcoated chain link fence and have a 24' to 40’ high black vinylcoated chain link backstop extending from first base and third base. The field will have a press box building behind home plate; 2 sets of 5-row bleachers on concrete pads per side; black vinyl-

principles in practice. The raingarden will have a collection and infiltration

Site Lighting

basin with trees, shrubs, and groundcover. The basin will be formed with sunken concrete walls, 2.5’ height, and water will be carried into

Site lighting will consists of cut-off style luminaires on 25' metal poles

the rain garden via concrete channels that will spill into it from the

for parking lot and roadway lighting; cut-off style luminaires on 15'

wall. The rain garden will be underdrained and there will be an overflow

metal poles for park walkway and courtyard lighting; and specialized

drainage structure in the basin. It is anticipated that Wakefield science

high mast lighting for the baseball field and softball field. All parking

classes will utilize the rain garden as a teaching tool.

lots, roadways, and walkways will be illuminated with site lighting.

coated chain link team ‘dugout’ enclosures with fabric roof,

Site lighting will comply with Arlington County requirements to minimize

bullpen and batting cages on each side of the field. There will be

The town square courtyard in the center of the new building will provide

a small field materials storage area adjacent to the field, and

an outdoor seating and eating plaza for students and staff. The

maintenance and emergency vehicle access to the field. The

courtyard will be primarily paved, with a perimeter planting of

field will have a center field flagpole and outfield illuminated

ornamental grasses and native shrubs. Trees will shade the courtyard

scoreboard. The field will be lit with sports field lighting with time

paving. Seating will be provided on benches at the courtyard perimeter

New landscape planting will be installed on the site, consisting of

clock and electronic controls. The infield area will have an

and at dining tables and chairs.

shade trees along the project’s streetscapes; parking lot shade trees

A new practice field will be located in the area between the baseball and softball fields. This field will measure approximately 100' by 75'. The field will have an automatic underground irrigation system and will be lit with sports field lighting with a time clock with electronic controls.

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the amount of light that is visible from beyond the site. Landscape Planting and Reforestation

and shrubs to comply with Arlington County standards; shade and

automatic underground irrigation system.

•

Site Furnishings

will have a press box building behind home plate; 2 sets of 5-row

materials storage area adjacent to the field, and maintenance

•

GRIDLEY ARCHITECTS

The theater courtyard will be in the center of the classroom portion of

ornamental trees adjacent to building entrances, shade trees adjacent

the school and will have amphitheater style seat walls for student

to walkways through the site, and screen plantings east of the sports

instruction or performance and a small terrace for special functions

fields adjacent to S. Chesterfield Road and S. Dinwiddie Street.

and theater event break-out space.

Additional screen planting will be installed adjacent to the service area of the school; adjacent to the tennis courts; and adjacent to the retaining wall north of the tennis courts.

55

BUILDING SYSTEMS New reforestation will be installed in areas north and east of the athletic portion of the new building. This reforestation will offset the removal of existing woodland adjacent to the existing swimming pool building. Other existing woodland north of the proposed new building will be preserved and protected during construction. Landscape plant materials and reforestation plant materials will be provided to meet or exceed Arlington County tree replacement requirements for the site. Landscape plant materials will be selected from native and local plants that are adapted to the region’s climate and not require permanent irrigation or long term maintenance. Site Access All site facilities, building entrances, and destinations on the project site have accessible routes, as follows:

•

All entrances to the school and swimming pool will have accessible routes from adjacent parking lots and public sidewalks.

•

ADA parking spaces are provided in all parking lots equal to or in excess of minimum requirements. ADA parking spaces are distributed throughout the site in all parking areas.

•

The school courtyards are accessible from the buildings.

•

Sports and recreation areas on the site can be reached via accessible routes.

•

Walkways through the site are accessible.

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Rendering at Bus Loop

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57

BUILDING SYSTEMS CIVIL NARRATIVE General Description of the Site and Requirements:

School is being constructed. Therefore, new utilities must be constructed to serve the new School before the utilities serving the existing School can be disconnected or relocated.

practices, and also encourages use of innovative practices. Site construction for the new school will include construction of several types of BMP facilities to include two biofiltration basins, a CONTECH Stormfilter, and five structural Filterra systems, which are essentially

The existing Wakefield High School is located at 4901 S. Chesterfield Road, Arlington, Arlington County RPC No. 28017001, at the Northwest corner of the Intersection of S. Dinwiddie Street and S. Chesterfield Road. The Site Area is 1,575,559 Square Ft. or 36.1699 Ac., per the Field Survey. The site is zoned S-3A, Special District, which is the zoning generally used for schools and public facilities in Arlington County. Within the S-3A zone, Public Schools are a Conditional Use, requiring a Use Permit. In general, the site is surrounded by singlefamily residential uses, except for an area across S. Chesterfield Road from a small portion of the eastern property line, where the Claremont Elementary School is located. The purpose of the project is to replace the existing Wakefield High School with a new, modern, state-of-the-art facility, with the same student population, and to assure that the new facilities and site meet all current Arlington County and Commonwealth of Virginia codes and regulations. Improvements to meet current standards will include upgrades to utility services to provide adequate sewer, and water service and fire protection, adequate site drainage, and management of storm water to provide quantity and quality controls for site runoff. In addition to Arlington County standards and regulations, the new facilities will meet LEED Silver minimum standards. Since the new facilities must be constructed while the existing facilities remain in use by the students and staff, the site will undergo major disturbance over an extended period of time: building the new school where the existing baseball and softball fields and pool house are currently located, moving everyone into the new facilities, demolishing the existing old school and pool, and replacing the baseball and softball fields in the newly available space. The existing football field and surrounding bleachers, and the existing tennis courts will be left undisturbed by the proposed work. The design of the proposed improvements and phasing must take into account that all utility services to the existing School must be maintained while the new

biofiltration units in concrete boxes. These facilities will be constructed Storm Drainage and Stormwater Management – County Requirements: The site is located within the Four Mile Run watershed. In accordance with current Arlington County regulations, sites developed within this watershed must provide stormwater management facilities to capture and detain runoff from the developed site, during a 100-year rainfall event, and release that runoff into the downstream drainage system at a peak rate no larger than the theoretical peak rate of runoff leaving the “pre-developed” site during a 10-year rainfall event. Practically, the definition of “pre-developed” is a weighted average of a “meadow condition site” and the actual existing conditions on the site before the planned improvements start. Because of this extreme requirement by the County, the fact that there is actually a reduction in impervious area associated with the proposed improvements does not eliminate the need for stormwater capture and detention facilities. Therefore, stormwater detention facilities must be provided. Because the site is a school site, and all available space is used for building, facilities or athletic activities, or preservation of tree cover to meet other Arlington County requirements, there is no available space for a pond to collect and detain stormwater runoff. A system consisting of 96" diameter Type-II Aluminized steel pipes was deemed as the next most cost effective available method for capture and detention of stormwater runoff. The proposed 5-110’x8’(dia.) stormwater detention facility will be placed under the proposed surface parking lot between the new school and baseball field.

to capture and treat runoff from all vehicular access areas of the site and to capture and treat runoff from portions of the new School roof.

Storm Drainage and Stormwater Management – LEED Requirements: In addition to the County requirements, there are also Sustainable Site goals for LEED. The Peak Rate of Runoff portion of Sustainable Site Credit 6.1, for Quantity Control, can be easily met simply by compliance with Arlington County’s Quantity Control regulation as explained above. The Total Volume of Runoff portion of SS Credit 6.1 is met automatically, as long as the total percent of imperviousness of the site is reduced by the proposed development. Another way to meet that requirement is to capture and harvest the runoff from impervious areas of the site, using the captured water for grey water uses and/or irrigation uses, so that the captured water never gets back into the stormwater runoff from the project site. If there is an increase in impervious area associated with the planned development, capture and harvest of runoff from an area equivalent to the increase will meet the SS Credit 6.1. Sustainable Site Credit 6.2, for the Quality Control and treatment of storm runoff, requires that runoff from new impervious areas within the LEED Boundary be captured and treated by systems that will remove 80 percent of total suspended solids from the runoff. Compliance with

In addition, Arlington County has a Chesapeake Bay Preservation Ordinance, and requires capture and quality treatment (Best Management Practices) of all runoff from vehicular access areas of the site, and other impervious areas. Arlington County approves the use of all Commonwealth-accepted methods of BMP treatment, including vegetated swales, biofiltration basins and various structural

Arlington County requirements will meet only a portion of this LEED requirement. Additional capture and treatment facilities must be provided to achieve this credit. Water Efficiency Credit 1.1 and Credit 1.2 can be achieved by eliminating the use of County-provided potable water for irrigation purposes. If an irrigation system is required, then non-potable water

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must be used for the system. If an irrigation system is not constructed

Arlington County indicate that, although static pressures on the existing

at all, the points are achieved.

system are not very high (about 58 psi), response to flow demand is extremely strong, with an expected available minimum flow of 3480

The strategy to meet County and LEED requirements for this project evolves from these factors:

gallons per minute at a residual pressure of 20 psi.

•

Irrigation is required for the new baseball and softball fields.

New connections to the existing public water mains in the streets will

•

Capture and Storage of runoff is required to meet County Quantity

be constructed to provide a 6-inch domestic and a 6-inch Fire Service Control requirements for Site Plan approval.

•

School, while the existing water services to the old School and surrounding fire hydrants remain in use during construction. Three

Control requirements for Site Plan approval.

proposed fire hydrants will be provided and two existing fire hydrants will remain in service to meet Arlington County Fire Marshal location

Since irrigation must be provided, the water must be non-potable,

and spacing regulations. The 6-inch domestic water service to the

captured, and harvested rainwater. The best source of relatively clean

new building will be metered. A proposed 2.5-inch domestic water

rainwater is the new School roof. Captured roof water will need less

line will be extended from the new school metered system to serve

filtration and treatment for re-use. Storage must be provided for captured

the existing concession stand and future out-buildings.

runoff. Consequently the runoff can be captured and contained in an Site Utilities – Sanitary Sewer:

uses. Capturing and containing the first 1-inch of runoff from the building roof will completely meet the County requirements for Quantity Controls. Therefore the underground containment system is used as a Cistern, and double use is gained from the captured rainwater. Since all runoff from impervious areas must be captured and treated to reduce Total Suspended Solids to meet SS Credit 6.2, capture of the runoff from the new School roof, and elimination of all that runoff from the storm drainage system constitutes 100 percent treatment. Doing this, in combination with using biofiltration basins, vegetated swales and other structural practices to capture and treat runoff from vehicular access areas should allow achievement of LEED SS Credit 6.2. Site Utilities – Domestic Water and Fire Protection: The site is bounded by existing 12-inch water mains in South George Mason Drive, South Dinwiddie Street, and South Chesterfield Road. The school is currently served by a connection to the existing 12-inch water main in South Dinwiddie. The results of recent flow tests run by

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Site Utilities – Gas and Power: The existing School has a gas service connection to an existing 4inch gas main in South Chesterfield Road. There is also an existing 2inch gas line in South Dinwiddie Street and an existing 6-inch gas main in South George Mason Drive. The existing gas service is provided by Washington Gas.

line which will provide fire protection sprinkler services to the new

Capture and treatment of runoff is required to meet County Quality

underground holding system and used for grey water and irrigation

GRIDLEY ARCHITECTS

An existing sanitary sewer main traverses the middle of the site from South Dinwiddie Street, under the football field and out to South George Mason Drive at the northern tip of the site. The 8-inch diameter sewer main, which serves the residential area south of South Dinwiddie Street as well as a portion of the School site, runs along the west side of the existing school building and under the western tip of the existing tennis courts before turning north to run under the center of the football field, paralleling the large storm drainage trunk line. In addition, there is another sanitary sewer main running under South Chesterfield Road along the eastern edge of the site. This main serves the residential area along the east side of South Chesterfield Road, as well as the eastern portion of the school. The County has confirmed that the existing public sanitary sewer systems have sufficient capacity to continue to serve the Wakefield High School.

The existing 6-inch gas main in South George Mason Drive provides service to the existing Pool House. A proposed 6-inch gas line serving the new school is shown as connecting to the existing 6-inch gas main in South George Mason Drive. Washington Gas will extend a new gas service from this existing main to the new school. Washington Gas will extend the service line and will also set the new gas meter. An existing power pole at the corner of South Dinwiddie Street and Chesterfield Road serves as the power source for the existing school. It is assumed that Dominion Virginia Power will extend a new areal 3-phase circuit to the intersection of Dinwiddie and George Mason Drive for the new School from that location. Power will be then conveyed from this existing power pole through a series of 2-6" conduits and proposed 6’x12’x7’ electric manholes to a new transformer located in the service area of the new School.

New connections to the public sanitary sewer system will be constructed for the new school, while the existing connections are maintained to serve the existing School while it remains occupied. Once the existing school is abandoned, the existing sewer service connections will be demolished and removed back to the sewer mains.

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BUILDING SYSTEMS MUSIC & AUDITORIUM NARRATIVE

Design Principles

for teaching in an academic setting, it allows maximum efficiency of layout and gets the most use possible out of the spaces included in

Performing arts teaching, production, and performance facilities are grouped together in a complex near the main entrance to the school and include an Auditorium and a Black Box Theater and a variety of specialized classroom and support spaces. Spaces are organized in three precincts: Backstage and Production Spaces are isolated from public areas to allow the Auditorium and Theater to function properly at performance times. They include two chorus-size dressing rooms and associated toilets along a corridor flanking the house left side of the main theater auditorium, a small shop and tool storage area, storage spaces for both theater and music equipment, and a circulation system that allows easy backstage access between support spaces and both stages. The circulation system also allows easy loading from outside to the theaters through a dedicated loading door. Public Spaces include the auditorium of the Main Theater, supported by a small box office, and public access to the Studio Theater. Other public support spaces, such as public toilets, are organized so that they meet general school needs throughout the day when no performances are taking place. Public lobby space is created by widening corridors at the first and second floors outside the Main Theater, so that performances are supported with as little dedicated public space as possible for maximum building efficiency. Music Teaching Spaces are grouped around a main floor corridor. A system of doors allows them to be isolated from the public at performance times, so that music rehearsal spaces and classrooms can serve as primary performance support spaces for the Music program. But the same corridor system allows public access when needed to the Studio Theater and easily handles the large groups of students that regularly attend classes and rehearsals in the Music area. A few support spaces are located at the second level, along with access to the mezzanine seating levels of both theaters.

Several key principles guide the design approach to the performing

the ed specification.

arts complex. The most important of these include: General Descriptions of Key Spaces Safety: Above all, the safe operation of the theaters and support spaces is

Auditorium:

critical. Theaters are inherently dangerous places to work, and just

The Auditorium seats 625 in a configuration that includes a main floor

as student safety is crucial in planning physical education spaces or

with lower sloped area, cross-aisle, stepped upper area, a mezzanine,

science labs, so it is vital in academic theater design. Thus all stage

and seating in side galleries. The galleries help to make the layout as

lighting mounting positions in the Main Theater are accessible from

efficient and intimate as possible and provide reflective surfaces for

catwalks, rather than via personnel lifts or tall A-ladders. Stage rigging

acoustical purposes. Lower capacities will be used depending on

is by means of motorized winches, the safest operating option available.

around the perimeter of the space can be reached from the gallery

event type. For musical theatre, the 57 chairs in rows AA, BB, and CC can be removed to create a flat area for a “pit” orchestra, or stage extension platforms can be used to allow musical ensembles to perform within the auditorium volume for acoustical purposes, or to stage

level, and use of personnel lifts is limited only to areas over the center

more intimate spoken work drama. This arrangement is designed to

of the room. Backstage corridors are wide to permit ease of movement

allow the auditorium to look good when not all seats are full. For

and equipment. Running lights provide safe illumination in all backstage

performances that attract only 300 to 350, for example, limiting access

areas during blackouts.

to the mezzanine and upper side galleries, and reducing architectural

All large scenic and drapery items can be moved into position with this equipment. Even in the Studio Theater, stage lighting fixtures

lighting levels in upper areas, will allow the theater still to seem Efficiency and Flexibility of Use:

reasonably full. The main level of the Auditorium is entered from the

Every major space in the performing arts complex has multiple uses.

rear on both sides through sound and light locks. From the entry

Both theaters can be used for music, dance, and dramatic

point, audience members can either follow aisle access paths to the

performances, and of course the Main Theater is intended for large

cross aisles (to access the lower seating area) or go up a few risers to

school assembly uses of many kinds. Both theaters are intended

the rear of the upper stepped seating section. The mezzanine is also

both as teaching and performance spaces, where instruction in

entered from the rear, and steps lead down to side galleries on both

performing arts disciplines takes place on a regular basis. These

sides. Open connecting stairs allow communication within the

spaces are classrooms, laboratories, and exhibition spaces. The same

auditorium between the mezzanine and main levels at both sides near

approach is applied to support spaces. The large music rehearsal

the proscenium wall, and the same stair system provides secure access

classrooms will serve as backstage support space at performance

to the catwalk level.

times for music ensembles. Control booths for both theaters are large enough to accommodate students observing the use of consoles and

The stage is organized in a conventional end-stage configuration in

other equipment. Catwalk areas serve as staging spaces for lighting

order to allow it to easily accommodate as wide a range of performance

equipment and for teaching of stage lighting and theater technology.

disciplines as possible in addition to video projection. A permanent 4’

This approach not only allows performance spaces to function optimally

apron extension allows performers to work downstage of the proscenium

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GRIDLEY ARCHITECTS

line and allows easy access from auditorium to stage. A crossover

The control booth is at the elevation of the second floor of the school,

of wheelchair spaces available will exceed the seven required for the

corridor behind the upstage wall of the stagehouse (part of the

so it overlooks the seating gallery.

main Theater, and if events are offered for which the mezzanine is closed, main level boxes will accommodate more than the minimum

backstage circulation system described above) maximizes stagehouse efficiency, permitting scenery and backdrops to play all the way to the

Music Rehearsal Spaces:

of five spaces needed based on the capacity of the main floor. Most boxes allow for wheelchair “clusters,” where two wheelchairs are located

upstage wall. Two main spaces are provided for large ensembles, one for band

side-by-side, each with a companion seat. The circulation system

The stagehouse is just under 50’ high to the roof, allowing maximum

rehearsal and one for chorus and orchestra use. The chorus/orchestra

that leads from the auditorium to the stage (and off again on the other

high trim under rigging equipment of approximately 37’-9”. Two winches

room is large enough to permit separate simultaneous set-ups for

side) allows access for everyone on the main floor directly to the

are dedicated to supporting overhead acoustical panels to support

both uses, so that shared use does not involve moving chairs and

stage, whether by wheelchair or ambulatory, with no need for wheelchair

performances by musical ensambles. The catwalk system extends

stands constantly. Both are double-height spaces with plenty of volume

lifts. The control booth is also accessible by ramps.

over the entire stage area (including three transverse catwalks and

for acoustical purposes. All large music rehearsal spaces are separated

wide connecting catwalk fly floors at both sides) and over the auditorium

by smaller, quieter uses for acoustical separation, and construction

(including two front-of-house catwalks and side gallery positions). The

details will also provide ample acoustical isolation.

and the mezzanine gallery provides 25% or less of total capacity, the mezzanine gallery is not required to be accessible. However, the

control booth is at the rear of the main level for ease of access, and house mix and designer’s table locations are integrated with accessible

In addition to the two large rehearsal spaces, a variety of small ensemble

cross aisle boxes.

and individual practice/lesson rooms are arranged in the music area. Instrument storage and music library areas support both large rooms

Black Box / Studio Theater:

In the Studio Theater, because total seating capacity is less than 300

and include instrument lockers for student use accessible from the main music area corridor. A digital music lab supports teaching of

The Studio Theater is a flat-floor space with upper seating gallery on

music appreciation, composition, arranging, keyboard technique, and

three sides and a pipe grid overhead at approximately +21’-6” for

other electronic music functions. Storage for marching band equipment

equipment mounting. A large loading door in the center of the fourth

is located with easy access to the outside. The music spaces are

wall allows easy movement of scenery and equipment from the

readily accessible from the main performing arts loading and receiving

circulation corridor system. The theater supports a variety of stage

area for movement of large instruments and equipment.

school may opt to install wheelchair lifts to make the gallery wheelchair-accessible if desired. The main floor seating configuration will change for each production, but the main floor can easily accommodate the five wheelchair spaces required for the Studio Theater. The control booth, which is at the elevation of the second floor of the school, is fully wheelchair accessible. Assisted listening systems will be furnished in both theaters, and all rehearsal and support spaces are fully accessible.

configurations. Seating or stage platforms can be used to created raised levels within the room. The Studio Theater seats approximately

Accessibility

125 to 180 depending on configuration, including seating at the gallery level, although larger capacities are possible on the Main Level for

The entire performing arts complex is designed to meet ADA standards.

lectures or other non-performance uses. The main level is entered

In the main Theater, wheelchair-accessible boxes are provided along

from the public corridor in the music area, and a sound and light lock

the entire main cross aisle and in proscenium boxes, and in the

allows circulation to the rear of the room. The mezzanine level

mezzanine in boxes across the upper row. The lower orchestra section

accommodates 38 fixed chairs. It can be entered from the second

is sloped at 1:12 to allow wheelchair access to the front of the stage

floor, via steps leading down to the seating gallery. However, an internal

for uses such as musicals (when “pit” orchestras may play in that

connecting stair allows access between levels and can be used as

area) or for events using live sign language interpreters for which

the primary entry point to the gallery if show configuration dictates.

accessible seating in front of the stage is required. The total number

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BUILDING SYSTEMS AQUATICS NARRATIVE

the pool for floating lane lines. A stair alcove for easy entry and exit

HYDROSTATIC RELIEF SYSTEMS

from the pool will also be provided. Equipment to be provided will

A means of stabilizing the pool shell when abnormal subsurface

include all anchors, grab rails, recessed ladders, a fixed location

hydrostatic pressure occurs will be provided, which otherwise can

handicapped lift, a second anchor and hydrant box for a future second

cause the pool shell to float when the swimming pool is empty. This

The Wakefield High School project will be designed to meet the needs

handicap lift, and a timing system which will include digital pace clocks,

hazard is minimized if a full basement surrounds the pool tank; however,

of the Arlington Public Schools for the next fifty years. It is important

a scoreboard, and touchpads. All other pool-related equipment such

if the pool walls rest in an unexcavated mass, the danger does exist.

to provide maximum flexibility for programming, which will be the key

as the floating lane lines and reels, starting blocks, deck mounted

to maximum utilization.

water polo goals, movable guard stands, backstroke flags and poles,

The design of a hydrostatic relief system is usually based upon the

false start rope, and miscellaneous safety and maintenance equipment

predictable levels of the subsurface water table. Because other

will all be provided by the pool contractor as part of their contract. The

developments can also create a hazardous situation when the pool is

water temperature in this pool will be kept between 78-82 degrees.

empty, it is important to understand these various dangers and to

PART 1: SWIMMING POOL GENERAL

The Natatorium will feature an eight lane competition pool and a combined teaching and dive pool as described in Section 2. The pools will be constructed of cast-in-place or pneumatically applied concrete. The interior of the pools will be a proprietary aggregate plaster finish (e.g. Diamond Brite or Pebble Tec) with ceramic tile accents and markings. Both pools will utilize regenerative media filter systems. The natatorium and swimming pools will meet the following performance standards: Water Temperature: Competition Pool

=

78 - 82 degrees F.

Teaching/Dive Pool

=

84 - 86 degrees F.

Turnover Rate of Filtration System: Competition Pool

=

3.93 hours

Teaching/Dive Pool

=

4.17 hours

Free Chlorine Level

=

1.0 - 3.0 ppm

pH level

=

7.4 - 7.6

design a comprehensive system that will prevent destructive forces Teaching/Dive Pool: The instructional pool will be approximately 2,990 Sq Ft and have the following amenities: zero depth ramp entry, large stair entry, underwater bench in the teaching area, a floating divider wall that is 8-5/8" wide, and two 1-meter diving boards. The pool will have a minimum depth of 3’-0" and a maximum depth of 12’-0". A deck level gutter system will be provided for recirculation of pool water. Equipment to be provided will include all anchors, grab rails, a hydraulic handicap lift, two 1meter diving stands and boards, and the aforementioned floating divider. The contractor will also provide moveable guard stands, floating lane lines and reels, and miscellaneous maintenance equipment, and safety equipment. The water temperature in this pool will be kept between 84-86 degrees.

from developing. Various systems have been developed including automatic check valves, concrete ballast, dehydration systems, refilling systems and gravity drains. The primary issue, as in any preventative action task, is to understand the various kinds of hazards and damage that may occur. Even a benign water table is not justification to dismiss the potential problem. An unnatural hydrostatic pressure condition can develop if a break occurs in a water pipe in either the fresh water system or the pool water system. This rapid introduction of water into the otherwise “dry” substrata can create an unstable condition for the pool shell. In the case of the fresh water line, the condition can go undetected for months in certain circumstances. For this reason the pool will feature some means of draining the substrata below the pool shell.

POOL CONSTRUCTION

In addition to conventional automatic hydrostatic relief mechanisms, a sight sump will be provided in the pool deck. Such a feature will allow the visual inspection of the water table under the pool if the

75’- 3/4" x 62’-0" with a minimum depth of 4 feet and a maximum

Pool shells of cast-in-place or pneumatically applied concrete will be

facility management plans on emptying the pools.

depth of 7 feet. Eight 7’-6" wide lanes will be marked with black floor

provided depending on the preference of the pool contractor. An option

markers across the pool. An 18" deep rollout gutter system will be

to use either method to be provided to the contractor. Different swimming

POOL FINISH

provided around the perimeter of the pool for recirculation of pool water.

pool contractors use different methods of concrete pool shell

Wall targets and floor markers will be provided for a competitive race

construction.

The interior finish for the competition pool and the instructional pool will be a proprietary aggregate plaster (e.g. Diamond Brite, Pebble Tec). Specialty tile will be provided for the perimeter tile band, gutter nosing, wall targets, recessed steps, floor lane markings, depth markings, warning signs, and construction joint installation bands.

PART 2: SWIMMING POOL SYSTEMS AND EQUIPMENT Competition Pool: The indoor competition pool will have dimensions of approximately

course and small markings will be available for the 62’-0" cross course lanes that span the width of the pool. Rope anchors will be provided in 62

WAKEFIELD

HIGH

SCHOOL

BOWIE

DECK SIGNAGE

PUMPING EQUIPMENT

Depth markings and warning signs for the pool(s) deck will be required

Horizontally mounted centrifugal pumps will be utilized for the pool recirculation pumps, and will be certified by the National Sanitation Foundation (NSF) and bear the certification mark. Pump casing will be cast iron fitted with a replaceable bronze case wear ring. Pump impeller will be enclosed type of cast bronze, statically and dynamically balanced, and trimmed for the specified design conditions. A hair and lint strainer will be provided, for each pump, constructed of fiberglass or epoxy coated stainless steel construction with a clear observation top. Pressure gauges will be installed on the discharge of the pumps and compound gauges will be provided at the intake port of the pumps,

by code in contrasting ceramic tile. Depth markings will be shown in standard and/or metric measurements. “NO DIVING” signs will be provided at all pool areas with a depth of water 5’-0" or less. Depth markers will be provided per code at not more than 25 ft intervals. OVERFLOW RECIRCULATION SYSTEMS In modern swimming pools, the purpose of the perimeter overflow system is to receive and capture water at the pool surface. This water is then transferred to the filter plant, either by direct suction connection,

after the hair and lint strainer.

or through a surge tank, which helps stabilize the water displacement in the swimming pool.

PIPING SYSTEMS Exposed piping in the filter room and surge tank will be Schedule 80

A 18" deep rollout gutter will be installed on the competition pool and

PVC for strength and resistance to corrosion. All piping below the

a deck level gutter will be installed on the instructional pool. A surge

floor of the pool shell will be encased in sand and will be Schedule 80

tank will be required for both systems.

PVC.

FILTRATION SYSTEMS

All valves will be identified in the filter room. Valves will be described as to their function and referenced in the operating instruction manual

The filters will be regenerative media filters operating at a flow rate of not to exceed 1.4 GPM per square foot of filter area. Regenerative media filters provide superior water quality by filtering down to the finest microns. Regenerative media filters also require significantly less water when compared to traditional high rate sand filters. The systems will be designed to completely turn over the competition pool water every 3.93 hours and the instructional pool water every 4.17 hours. Filter room and filter face piping will be PVC Schedule 80 piping used throughout the pools piping system because of its noncorrosive quality; however, only molded fittings are recommended. All flanges will be reinforced with a steel ring molded into the flange to avoid cracking due to vibration. Heat exchanger bypass piping will be copper or CPVC.

FINAL

DESIGN

REPORT

GRIDLEY ARCHITECTS

An ultraviolet dechloramination and disinfection system will be provided for each pool so that the pool water will be monitored and treated by UV sterilization in the range of 220nm to 400nm to kill bacteria, viruses, molds and their spores and to continuously remove chloramines. The concentration of free chlorine residual will at all times meet the requirements of the Health Department authority having jurisdiction over the swimming pool. Any proposed UV system must have a UL listing on the complete system and be listed under NSF Standard 50. WATER CHEMISTRY CONTROLLER A programmable chemical automation system will be furnished for the pools for continuous monitoring of water chemistry (ORP/HRR, PPM, pH and Temperature), Langelier Saturation Index, and for automatic control of the chemical feeders, heater, and water level. Installation of the system will be as specified by the manufacturer. A factory-authorized representative will provide training to the owner and the training will be videotaped per the specifications. Such a system will not only improve the water quality of the pool, but will also improve the overall environment of the natatorium because of the greater degree of chemical balance of the water. This can result in much less aggressive atmospheric conditions.

and wall mounted piping diagram to be prepared by the contractor. INSERTS AND ANCHOR SOCKETS CHEMICAL TREATMENT SYSTEMS

A.

Anchors for grab rails and stair railings will be provided.

Sodium hypochlorite will provide the primary chemical sanitizing for the pools. The halogen requirement of the pools will be automatically monitored and controlled by a chemical controller capable of monitoring parts per million of chemical and showing Oxidation Reduction Potential (ORP) in addition to the traditional readings of sanitizer and pH.

B.

Anchors for backstroke stanchions and water polo goals will be

CO2 will be provided as the pH buffering system. The CO2 system shall consist of CO2 storage tank, a lockable fill box for bulk delivery, a pressure reducing/regulating system, a feed and rate of flow adjustment control system, injection or mass transfer system, and all valves, tubing, fittings and appurtenances required for a complete and operable system.

provided. C.

Heavy-duty cup anchors for all floating lane lines will be provided.

D.

Anchors for starting blocks will be provided.

E.

Anchors for diving boards will be provided.

F.

Anchors for the handicap lift will be provided.

DECK EQUIPMENT A. Grab rails and recessed steps for the pool will be provided as required. These will be provided by stainless steel grab-rails set in chrome plated bronze wedge anchors and escutcheons with set screws. Recessed steps in the pool wall will be provided. The facility will also have the flexibility to use removable ladders along the pool perimeter.

63

BUILDING SYSTEMS B. C.

D. E.

Two 1-meter diving stands with diving boards. A surge tank access hatch will be furnished and installed over each surge tank. The access hatch will be a single door 2 ft.-6 in. x 2 ft.6 in with 1" fillable pan to receive ceramic tile and grout or concrete deck fill. The frame will be 1/4 inch extruded aluminum with built in neoprene cushion and continuous anchor flange. Door will be ¼” aluminum plate reinforced with aluminum stiffeners as required. Surge tank ladder rungs will be 1/2 inch Grade 60 steel encased with co-polymer polypropylene plastic. Handicap lift(s) will be provided to meet ADA guidelines. The lifts will be hydraulic and require water service from the pool’s circulation system.

MAINTENANCE EQUIPMENT A. A vacuum cleaner will be provided with pump and strainer. B. A robotic cleaner will be provided. C. Stainless steel cleaner will be provided. SAFETY EQUIPMENT A. A first aid kit will be a 24 unit kit per American Red Cross standards as manufactured by Swift First Aid, or equal. B. A safety eye wash station will be a self-contained system in which eyewash bottles are securely positioned in a portable holder. Eyewash bottles will be 32 ounces and easily removable from case and will contain a sterile, saline solution with the ability to neutralize a varying quantity acids or caustics. C. A safety eyeglasses dispenser station containing ten (10) pairs of safety glasses will be provided.

Pool Rendering

SWIMMING POOL TIMING SYSTEM A swimming pool timing system from Colorado Time Systems, Daktronics, or Omega will be provided for the natatorium. The timing system will consist of touch pads, a touch pad caddy, a scoreboard, wireless controllers for three diving judges, a timing system, and multiple digital pace clocks. The scoreboard will display times for 8 lanes plus 3 event information lines and a facility name line.

64

WAKEFIELD

HIGH

SCHOOL

BOWIE

FOOD SERVICE NARRATIVE This is a six-line servery consisting of five “identical” service stations plus one “quick service” or Grab n’ Go area for persons wishing reduced or augmenting service for lunches brought from home, for example. The servery is semi-partitioned from the Main Kitchen and storage areas by a wall containing three cased opening for access between the areas. Foods and beverages are prepared, whether packaged or in bulk, hot or cold, and placed in roll-in, pass-through hot cabinets or refrigerators to maintain proper serving temperatures. Pass through windows, sized to accommodate a sheet pan and enable communication between the kitchen and the servery are provided over each landing table on the servery side. All service wares and utensils are pre-cycled or recyclable materials and are completely disposable. The intent of the design is to focus on the noon meal although breakfast service is certainly available. The layout of the service lines and queues is intended to serve all participants in the first fifteen minutes of each lunch period, leaving the balance of time for dining, chatting, and clearing.

•

•

•

•

•

•

Each line is provided with a beverage cooler, self-service refrigerated display, flat deck service area, “pizza deck” hot area, five full-size hot (or ambient) food wells (with individual controls and drains), service overshelf/lighted shield with heat lamp, and a 14" “delivery area” at the end of each service line, in sequence.

FINAL

DESIGN

REPORT

•

The Director of Nutrition’s office is situated to monitor kitchen and storage area access.

•

The Dry Storage Room is large and will accommodate rolling racks of products delivered by Vendors.

•

Staff toilet rooms, locker rooms, custodial sink, and “rag” washer/ dryer are located away from the food handling areas. Recommend a lockable power disconnect for the washer/dryer to avoid misuse and abuse.

EXPANDED NARRATIVE Dissipating the Crowd

•

The cooking line is provided with five major appliances: three double, ten-pan convection ovens, one ten-pan steamer, a 40gallon tilting braising pan and a six-open burner range with oven, for small amounts of ingredients or sauces for menu items.

Students and staff approach the serving area from the central main

The Exhaust Canopy is a compensating hood with an automatic fire suppression system, and is 20’-6" long in two equal sections.

communicating the Specials of the Day, general daily menu, and service

corridor and flood into the queuing spaces in front of the serving lines, choosing the line that is less stacked up or offers the selections preferred. We recommend the development of some means of lines available.

•

The cook line is flanked by one each reach-in refrigerators and freezer.

While not included in the project Scope of Work, this is an area where

•

All work stations are provided with hand washing sinks, singleuse towels and soap.

line flows and participation, pre-printed monthly menu sheets posted

•

There is no formal “bakery” area.

decades but can certainly be improved upon.

•

Vegetable prep area (cold foods handled from raw ingredients) is adjacent to the hot food areas; provided with a large vegetable prep sink with long drainboards, a large equipment and work table, and both hot and cold areas have ready access to pans and service pans for bulk set-ups.

Patrons queue and land their selections on a tray slide at the cashier, complete the sale transaction, and drift into the seating area. A self-service ice cream novelty cabinet is mounted on each cashier station. Menu offerings at each of the five lines may be identical or be different at the discretion of the Director of Nutrition.

The Main Kitchen is provided with a large walk-in cooler and walkin freezer that meet or exceed County standards. We recommend time/temperature recording devices to monitor the status of the product inventories for HACCP Compliance.

Food waste disposers are provided in two areas, the scullery and the vegetable prep area.

There are three “hot prep” and two “cold prep” worktable areas although they are interchangeable as needs present themselves.

• Five service lines, whether the one single or the two tandem groups, have the same appliances and equipment, and each has its own cashier/validator.

The quick service line is provided with a beverage cooler, two selfservice refrigerators for cold foods and beverages, a triple soup/ chili/stew station, small wrapped salads bar, an ice cream novelty cabinet, and the cashier/validator. Products are self-serve or packaged, therefore a handsink in the room is not a Health Code requirement.

•

•

EXECUTIVE SUMMARY HGHLIGHTS

•

Daily “Specials” may be served, or lines may be shut down if not needed, due to large field event absenteeism, or foul weather days.

GRIDLEY ARCHITECTS

•

An automated scullery sink with power washer bowls is provided for pan maintenance.

•

There is no “dishwasher” area.

the development of a workable identification system can greatly enhance about the campus bulletin boards have been a dated mainstay for

With the use of running LED menu displays in the entrance or in the dining room itself (also great for announcements, birthdays, special events, athletic scores, and congratulations), “Tomorrow’s Menu”, websites, and other visual aids, the patrons are interested, engaged, and encouraged to participate in the food service. Cycled menus can be composed and stored, rotating every twenty-one days on the average. Seasonal specials and holidays can be celebrated to liven up the service.

65

BUILDING SYSTEMS Served persons find their preferred seating group, unless assigned, and dine, socialize, and exit, depositing their used wares on the way out, sorting recyclables, and condensing their refuse in concealed receptacles around the dining room (not shown on the plan).

and a few hot items can be offered but in principle nearly all items are pre-packaged, wrapped, containerized, or otherwise ready to “grab ‘n go”. Hot soup, chili, or stews are ladled by the customer into one or two sizes of containers, as in a grocery deli, and capped.

Serving Stations

The open top/front beverage cooler is a typical forced air case holding

All items are pre-priced and the cash register/validator is preprogrammed so that a rapid-fire transaction rate of sales can be maintained. The five standard serving line register equipment is similar in selection, with under-counter cash drawer, POS touch screen register, and card reader/validator touchpad, depending on the sales recording and payment system selected by the school district.

in this instance up to eight dairy crates of milks, punch, or juice in Five stations are replicated and one is for Quick Service. The Quick Service “Grab n’ Go” station is first in sequence so that those patrons wishing to get in and out quickly are the first served. Ahead of each other standard service station is a foyer queuing area to absorb the “milling crowd”. There are no physical control crowd barriers shown. Patrons enter the serving station and choose from pizza or hot entree. Next, the patron encounters a flat surface that can contain baskets of treats, PC-pack condiments, utensils and napkins. The last station before the cashier is an open-face airscreen refrigerator loaded with packaged cold entrees, salads, sandwiches, fruit, desserts, and beverages. The hot food section offers a glimpse of the “pizza(s) of the day”, and the hot entrees (anything from burritos to three-item plate lunches), served into/onto disposable wares brought up by the staff servers from behind the line. The “tray carts” are deposits of service wares; no trays are made available to the patrons. As the patron turns away from the hot service area, they queue and face the cashier area and set down their selections on the tray slide three positions ahead of the transaction. There is an opportunity to buy an ice cream novelty if desired, or the patron can come back after eating the hot/cold lunch, and buy an ice cream novelty, as the main serving stream will have dwindled by that time in the lunch period. Grab n’ Go Quick Service It is not uncommon for 15-20% of students to favor this type of service. Perhaps they do not desire a large meal, or would rather spend their time socializing with their classmates. A variety of foods, beverages,

cartons. The two airscreen cases are vertical with multiple levels of

Receiving and Storage

lighted shelving that support canned, bottled, or packaged beverages of wide variety, or foods such as yogurts, fruit, pastries and cakes,

Starting at the receiving dock, which is shared with the other

salads, sandwiches, side orders (cole slaw, potato or macaroni salads)

departments of the school, the bay area should be dedicated to food

and beverages.

services to reduce the chance of food products and supplies crossing delivery paths of non-food items, such as chemicals and detergents,

Three hot soup wells are shown, each with a capacity of 11 quarts or

shop supplies (cleaners, paints and varnishes), gardening chemicals,

28 12-oz portions. The “tray line” is a two-level arrangement wherein

and general office and classroom supplies.

the lower level is used to set empty containers, lids, plastic flatware, condiments, napkins, and “stadium trays”, leaving the top level and

Most school food service deliveries scheduled during strict windows

counters uncluttered for the display of selectable foods and beverages

of time, are made using one or more large articulated trailer trucks

only. The soups are positioned under lighted counter-mounted shields

and combine refrigerated, frozen, and ambient loads. Many are bar-

per Health Department requirements.

coded, palletized, and shrink-wrapped to speed handling and reduce dock dwell time. Manual pallet jacks and skid handlers should be

A flat service area between the soups and salads can be used for

procured by the school to move palletized loads off of the trucks and

pastries, muffins, cookies, brownies, or any other wrapped, ambient

off the dock apron to areas of breakdown and storage. We have

temperature products or condiments. The cold pan (aka salad bar) is

indicated a pair of 36" doors leading from the dock apron to the interior

nearly 5’-0" long x 2’-0" wide and is covered by a lighted counter

corridor of the Main Kitchen. This corridor is 7’-0" wide at the critical

shield. The pan is mechanically-refrigerated per NSF Standard No. 7,

points and a grocery pallet is 40" x 46" leaving 44" clearance to walk

and does not require ice for cooling the products. The Director of

past.

Nutrition can devise a varied menu of chef’s salads, meat salads, vegetarian offerings (tabuleh, couscous, hummus), fruits, green salads,

Other uses at any food service dock are holding of recyclables,

and many desserts to fill the case. A two-section “Grab n’ Go Reserves”

dumpster access, and holding of Vendor’s returnable goods (racks,

refrigerator is positioned in the corridor just outside the service area,

dairy cases, and hampers.) Space should be set aside out-of-sight

for rapid replenishment of the displays during service dwells so that

as these are not attractive. A hot cold water dock hose bib is needed.

fresh, filled displays are promoted. A reach-in ice cream novelties freezer is positioned just ahead of the cashier zone. This can be filled with ice cream cups, and the usual drumstix, Eskimo pies, and other frozen desserts.

66

WAKEFIELD

HIGH

SCHOOL

BOWIE

All goods are received on the covered dock apron, moved off to a

Director of Nutrition Office

breakdown area, and distributed (either by food service staff or in some

GRIDLEY ARCHITECTS

period, so that fresh and toasty pizza will be available from start to finish. The same principles apply to other products such as burritos,

instances by Vendor personnel) to the Dry Storage Room, Walk-In

We have indicated a single office area of 94 SF, with windows facing

oven-fried potatoes and chicken fingers, and similar “fast-food” products.

Refrigerator, or Walk-In Freezer. Chemicals, disposable wares, and

the corridors. A single door between the kitchen and cafeteria is

other non-food items are staged in specific dry goods area so to remain

There are no deep fat fryers in the kitchen cooking line.

indicated for the persons wishing to visit the office without crossing

separate from foods.

through a heavy food handling area. There are usually two or more

Personnel and Service Flows

work stations in a food service office and additional space may be The Dry Storage Room is 300 SF and wide to allow parking of mobile carts and racks within for security. Vendor’s racks would have to be offloaded and reloaded. The Walk-In Cooler is 170 SF and the WalkIn Freezer is 200 SF, for a combined total of more than 400 SF. The space allocated between refrigerated and frozen storage may be changed without affecting the footprint.

required elsewhere. This needs to be determined by the school staff. Main Kitchen

The serving line layouts are intended to accomplish numerous goals. The layout allows ready movement of workers from station to station behind the serving lines, rapid redistribution of prepared food inventories,

The kitchen layout is “circular” as to worker routes throughout. Cold, raw foods follow a clockwise flow into the vegetable prep and cold

restocking of service items (trays, cartons and disposables), and general oversight by supervisors.

foods area where the products are processed into ingredients for hot

Employee Facilities Separate garment changing and locker rooms for male and female employees are indicated. Generally, school food service workers are 80%+/- female, in which case, we have in some circumstances recommended separate small, unisex garment changing rooms, and

meals or components for cold meals. Hot food ingredients or

The individual service lines promote separation of the patron lines

components travel directly into the hot food prep and then cooking

queues to reduce tension in the serveries, rapid choices by patrons of

zones, and when finished in “small batch lots” (for freshness) are placed

not only what offerings to select but also which lines to join for speedier

in short-term, hot food holding cabinets with atmospheric and heat

service. Movement between the “behind the lines” area to in front of

level controls to maintain quality.

the lines during service for restocking is promoted by three distinct counter gaps that do not interfere directly with the queues of patrons.

a single, large non-enclosed locker area, where personal items and outer garments can be secured at random, thus conserving a large amount of floor space and reducing the actual locker count. Restrooms remain totally separate from the changing and locker areas.

Soiled utensils, pans, trays, and serving pans from the serving lines are gathered from hot and cold working areas and transported on carts to the scullery area equipped with a large three compartment sink for thorough cleansing, and clean wares are staged for re-use between

The layout and arrangement of the employee facilities will be executed

the cold and hot food production areas.

by the architects. Also in the employee facilities area are a custodial room with service sink and small detergent rack, and side by side linen washer and dryer, intended for cleaning rags and mop heads, not for personal garments. General aprons, side towels, cleaning cloths, and perhaps head coverings, along with any special event linens, would be contracted from a linen service company, with clean linens

The Main Cookline faces the servery demising wall that is penetrated by roll-in, pass-through hot cabinets and refrigerators. Between the cooking line and holding units are a string of prep and panning tables to convert bulk foods from large batch to small batch units for distribution among the service lines.

stored in the Dry Storage Room (or a special closet), and soiled linens in hampers secured on the loading dock. Such items possess value,

Pizzas, as an example, will be pre-dressed and held chilled on bakery

and we suggest a lockable cage if not ventilated room, be provided to

racks, and progressively baked off, sliced and trayed in the kitchen

secure vendor’s returnables.

and distributed among the hot servery lines during the entire service

FINAL

DESIGN

REPORT

67

SECTION

9

ACKNOWLEDGEMENTS

This Final Design Report for Wakefield High School was conducted for Arlington Public Schools Department of Design and Construction in association with the Building Level Planning Committee (BLPC) and with review and comment by the Public Facilities Review Committee (PFRC). The BLPC was comprised of Wakefield High School staff, students, and parents, regional liaisons, and local community groups. The PFRC, appointed by the County Board, was appointed the task of working with BGA to meet the goals and objectives for the project and to assist in creating a schematic design, to be presented to the School Board in terms of scope and budget.

Building Level Planning Committee

Public Facilities Review Committee

• Catherine O’Malley

Wakefield High School BLPC Chairwoman

• Inta Malis, Chair

• Stephanie Britt

Columbia Forest Civic Association

• Lander Allin

• Fernando Castro

Wakefield High School, Head Custodian

• Paul Benda

• John Garren

Claremont Citizens Association

• Charlie Denney

• Ben Griffin

Wakefield High School, Parent

• Richard Engelman

• Chris Willmore

Wakefield High School, Principal

• Elizabeth Ertel

• Doris Jackson

Wakefield High School, Former Principal

• Reid Goldstein

BGA and APS would like to thank the BLPC and the PFRC for their participation in this process. Their time and commitment to this task has helped to make this design process meaningful for the school system and the community at large.

• Patrick Kelly

Wakefield High School, Teacher

• Brian Harner

• James Lander


• Eric Harold

• Daphne Miller

Wakefield High School, PTA Executive Board

• Lisa Maher

Arlington Public School Board • Sally M. Baird • Libby Garvey • Abby Raphael • Emma Violand-Sanchez • James Lander

• Brenda Pommerenke Wakefield High School, Parent

• John Miller

• Jose Quinonez


• Charles Monfort

• Helen Reinecke-Wilt

Claremont Citizens Association

• Eric Sildon

• Mary Skocz

Advisory Council on School Facilities & Capital Programs

• Joe Taylor

Wakefield High School, Teacher

• Tom Windsor

Wakefield High School, ITC

• Londi Guerra

Wakefield High School, Student

• Celena Madlansacay Wakefield High School, Student

Arlington Public Schools • Dr. Patrick Murphy

Superintendent

• Clarence Stukes

Assistant Superintendent, Facilities & Operations

• John Chadwick

Director, Design & Construction

• Steve Stricker

Design & Construction, Senior Project Manager

• Rasheda McKinney

Design & Construction, Project Manager

• Monika Szczepaniec Design & Construction, Project Manager • William Herring

Design & Construction, Senior Project Manager

68

WAKEFIELD

HIGH

SCHOOL

BOWIE

GRIDLEY ARCHITECTS

Project Team Bowie Gridley Architects Calvert Bowie, Principal Paul Lund, Principal/ Project Manager David Marks, Project Architect Amy Olenick, Project Architect Pavel Zhurov, Project Architect Jonathan Penndorf, Project Architect Michael Wnuk David Morris Sarah Naranch Erin Murphy Qi Qi Joyce Alexander Cook Mickael Kerr John Jedzinak Shayne Pintur

Thornton Tomasetti, Inc. Structural Engineers Wayne Stocks Peter Drake Jonathan Kopp Dunlap & Partners Engineers Mechanical, Electrical, Plumbing Engineers Bob Lacy John Cain Bowman Consulting Group, Ltd. Civil Engineers Russell Smith Scott Delgado Marco Midence

FINAL

DESIGN

REPORT

Downey & Scott, LLC Cost Management Consultant for Pricing Estimates William Downey Chris Taylor Geoconcepts Engineering, Inc. Geotech Engineers Ted Lewis Daniel Gradishar Froehling & Robertson, Inc. Hazmat Consultant Jason Blumenberg Tricon Food Service Consultants Food Service Consultant Paul Miller Deborah Gemma Martin Vinik Planning for the Arts, LLC Theater Consultant Martin Vinik Sustainable Design Consulting, LLC LEED Consultant Kara Strong Counsilman-Hunsaker Aquatics Consultant Steven Crocker Jeff Nodorft Heller & Metzger, PC Specifications Consultant Kathy Alberding

69

BOWIE GRIDLEY A R C H I T E C T S 1010 Wisconsin Avenue NW, Suite 400 Washington, District of Columbia 20007 w w w. b o w i e - g r i d l e y. c o m

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