dune and coastal bank restoration: using soft engineering ... · santander, spain. spanish state...
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Dune and Coastal BankRestoration: using softengineering techniquesMICKEY MARCUS
NEW ENGLAND ENVIRONMENTAL, [email protected]
Bank restoration along tidalRiver.
Plants grown in nursery in coir mat
After one year, plants established, Starting to gain land.
Established coastal bank
Bank protection using coir fascinesalso known as “biologs”
Coir covered with “sacrificial sand”and planted with beach grass
Becoming established
After the first year
Native plants areBecoming established
Coastal bank 1m erosion/yearLittle Compton, RI
Coir logs on slope
Installed withEarth anchors
Planted with native plants
Beach Grass in BioLog
After planting
Sprigs Installed
Conditions after 10 years
Bank has naturalized
Mediterranean Coast near Valencia, Spain1994
Dune Restoration
Dune restoration completed
Secondary dunes
Restoration of coastal dunes and salt ponds in progress (2005)
Dune Restoration, Bay of Biscay 2007
Coastal dune/salt pond restoration. Santander, Spain
Spanish State Nursery for coastal plants
Opportunities in United States
Unconsolidated sand on 30m highcoastal bank
Existing site conditions (Plymouth)
Install baffle system, plant,then hydro-seed slope
Establishment period.
Use flexible mesh biodegradablefabric to capture sand and to protectestablishing vegetation
After one year of growth
One year after establishment
After two years
Completed slope after two years
Completed project (lower vegetatedsection of dune)
Rock Toe of slope, covered with sand
Creating wooden staging to prevent slope erosion during planting
Installation of baffles & dune plants
Hydro-seed slope with native seed mix
Completed:June, 2008
Site after one year(August, 2009)
