INNOVATIVE COASTAL PROTECTION SOLUTIONS to reduce financial and environmental costs
“ENVIRONMENTAL ASSET LEVERAGING”
DESIGN
Angus Jackson, Executive Engineer, International Coastal Management, Australia & UAE
CONSTRUCT
Lachlan Jackson, Managing Director, Ecocoast Contracting, UAE
Protecting the environment costs $$$? Right?
Wrong! • Fighting the marine environment costs money [over engineering?] • Not maximising your environmental asset costs money
Environmental benefits - example CONVENTIONAL Nourishment plus regular sand nourishment or INNOVATIVE Nourishment stabilised by reef breakwater • Submerged – no impact on ocean views • plus new eco system – – – –
Soft construction = safe Diving = $ Fishing = $ Surfing = $
Financial • Cost savings of over 50% • Benefit : cost > 25:1
The marine environment is an asset The marine environment is a huge asset for coastal resorts and residential developments. So why do we get headlines such as: “Environmental troubles loom in Gulf region, UNU report warns.” “Nakheel to construct 500 artificial reefs.”
Leverage through innovation: preserve & improve the value ENVIRONMENTAL ASSET VALUE
concept
INNOVATION
Lowest project cost
conventional solution
Lowest design cost
VALUE
innovative solutions
The Asset Checklist Asset Ocean views Sandy beaches Clean clear water Safe swimming Watersports:
Boating Fishing Snorkeling/Diving Surfing
Marine life interaction:
Fish Turtles Dolphins Seabirds
Cost / Value Views clean clear water
sandy beaches TOTAL ENVIRONMENTAL ASSET VALUE safe swim marine life
water sports
Asset – Ocean Views
Asset - Sandy beaches
Asset - Clear water
Asset – Safe swimming
Asset- marine life interaction “.....the highlight for us was seeing some dolphins playing not far from where we were paddling.” “ We were able to go snorkelling the next morning where we saw sea turtles and swim with the fish. One of my friends even spotted a dolphin.” Trip Advisor – Hotel guest comment
Examples 1. Fishing marina, UAE
2. Soft sand filled wall, UAE 3. Low crested Groynes and seawall, Tanzania 4. Low crested Groynes and breakwaters, UAE
Fishing boat marina, UAE Significant cost savings in final design [ > 25%] • Lower crest of seaward breakwater / Car parking on protected side • Max reuse of existing rock; cost and environmental benefits
Hotel Beach, UAE Before – no beach at high tides in storms “The beach is on two levels … there is about a 5ft drop at the end of that level where the beach seems to have fallen away”. Tripadvisor – Hotel guest comment
Conventional solution = rock wall
Hotel Beach, UAE Typical rock wall – large footprint reduces beach asset
Sand filled geo-synthetic wall -User friendly -Small footprint -Reduced total cost
Hotel Beach, Tanzania Groynes to stabilise hotel beach Using existing small rock
Reclaimed Island Beaches, UAE
Reclaimed Island Beaches, UAE
~80 x 300 - 500t non–woven and woven SFC
Reclaimed Island Beaches, UAE Low crested groynes & breakwaters to stabilise reclaimed island beaches and maintain water quality
Leveraging your asset site Innovation Design & Construction
environmental assets $
CONTACT
Angus Jackson, Executive Engineer
[email protected]
WEBSITES
www.coastalmanagement.com.au www.ecocoast.com