May 7, 2015 - More drought information is available at DWR's Drought website: ... to repel salinity in the Sacramento-Sa
Temporary Emergency Drought Barrier in Delta Faced with potentially insufficient water supplies to repel salinity in the Sacramento-San Joaquin Delta, the California Department of Water Resources (DWR), in consultation with federal and state water and wildlife agencies, is moving to install an emergency, temporary rock barrier across a Sacramento-San Joaquin Delta channel. In-water work is expected to begin on or about May 7, 2015. The temporary barrier will be removed in November, 2015.
Boating Detours around Emergency Drought Barrier Travel Time Estimates– Central Delta (Bethel Island to San Joaquin River)
A)
Route for large-mast vessels: 40 to 45 minutes from Discovery Bay north to Old River keeping right at Frank’s Tract going north up to the San Joaquin River (Deep Water Channel)
C)
30 minutes from Taylor Slough or Piper Slough marinas north towards False River and north up Fishermans Cut.
B)
Route for smaller vessels: 40-50 minutes from Discovery Bay north to Old River, west to Sand Mound Slough, west on Dutch Slough towards the San Joaquin River past Big Break (see note).
D)
30-40 minutes from Bethel Island marinas south to Sand Mound Slough, T Y LBig E R Break west on Dutch Slough towards the San Joaquin River past (see note). ISLAND
R
Ge
or
gi
an
a
Travel Time Estimates– South Delta (Discovery Bay to San Joaquin River)
M ok
Note: Maintain course as far north as possible in main channel of Dutch Slough going past Big Break. 12 5 mile-per-hour limit on both Sand Mound Slough and Dutch Slough. RIO VISTA
um el
ne
N
Detours identified are subject to changes in natural flow conditions which are beyond the control of California Department of Water Resources.
SYCAMORE ISLAND
BRANNAN-ANDRUS
BRADFORD
rr
SHERMAN y
Sl
ou
gh
aq
e
False
lo
r
lo
BETHEL
gh
ch
ou
Sl
ut
TRACT
TRACT
QUIMBY ISLAND
BACON ISLAND
Slough
MI
IS
VEALE
Old
4
M
nd ou
gh ou l S
HOLLAND
HOTCHKISS Rock
ISLAND
Sheep Slough
Clearance at low tide = 19 feet
MANDEVILLE
ug h
S l ough
Clearance at high tide = 15 feet
OAKLEY
Franks Tract
ISLAND
Jersey Island Fixed Bridge constraints:
4
ISLAND
er
JERSEY
Big Break
160
ANTIOCH
ISLAND
Riv
Pi p
ISLAND D
gh
BOULDIN
VENICE
TRACT
S er
S
an
Jo
ui n
v Ri
y Ta
oad Br
Sherman Lake
ISLAND
WEBB
San d
be
ISLAND
r
ay
ISLAND
ugh Potato S lo
West False River Barrier M
TWITCHELL
Slough
DECKER ISLAND
Mo ke lu m
Slough
Fishermans Cut
m
to
r ve
ISLAND
R ne
Sa
a cr
en
Ri
Threemile
Sevenmile
TRACT
er
PA L M
Riv
TRACT
ORWOOD TRACT
Marina 0
0.5
Boating detour route 1
2
3
Indian
Slough
WO O DWARD ISLAND
4 miles
Discovery Bay More drought information is available at DWR’s Drought website:
