West Deer Lagoon Tidal Restoration
#06-NP-04-007 #06-NP-04-007
 Nearshore Projects Fish Access - Tidal Connectivity West Deer Lagoon Tidal Restoration
Organization Island County Lead Entity
Sponsor Wild Fish Conservancy
Status Planned
Schedule Start Date: 1/1/2010 End Date: 12/30/2016
Category Category: Restoration
DESCRIPTION
The primary objective of this project is to increase the amount and quality of salt marsh habitats available to juvenile salmon in Admiralty Inlet. A series of dikes has truncated tidal influence in the western lobe of Deer Lagoon, limiting its value as habitat for juvenile salmon. These dikes have resulted in the loss over 450 acres of potential salt marsh and mudflat habitat in the western lobe of Deer Lagoon. These dikes have also degraded ~100 acres of existing salt marsh on their seaward side, through decreased tidal prism. The reduction of flushing power (sediment transport capacity) from lost tidal prism has decreased the width and depth of the opening of the lagoon, as well as decreasing channel depths throughout the remnant marsh.The first phase of this project examined flood risk to private property adjacent to the lagoon. Modeling during this phase has shown that all of the project alternatives that would result in meaningful nearshore restoration would require the construction of a setback levee to protect homes on adjacent properties from flooding during extreme high tide events. The grant request in this proposal would fund a geotechnical assessment of constructing a setback levee at Deer Lagoon as well as further refinement of the restoration conceptual design. The geotechnical assessment would include an evaluation of the existing levee system, subsurface explorations, a characterization of of soil geotechnical and hydrogeologic properties, and a settlement and stability analysis.
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FUNDING SOURCES
FUNDING ENTRIES FROM GRANT PROJECT AGREEMENT
TypeDateFunding OrgFunding ProgramMatchAmount
Grant Project Agreement Totals Proposed Requested Allocated Spent Balance
OTHER FUNDING (Funding that is NOT in a grant project agreement)
TypeDateFunding OrgFunding ProgramMatchAmount
Other Funding Totals Proposed Requested Allocated Spent Balance
Grand Totals Proposed Requested Allocated Spent Balance
PRIMARY SPONSOR
PHOTOS

 
LOCATION
Chinook-Pop (ESU):Chinook-Puget Sound, Threatened
Chum-Pop (ESU):Chum-Puget Sound/Strait of Georgia, Not Warranted
Coho-Pop (ESU):Coho-Puget Sound/Strait of Georgia, Species of Concern
County:Island
HUC12:Whidbey Island-Frontal Admiralty Inlet (171100190105)
HUC8:Puget Sound (17110019)
Lead Entity Area:Island County
Legislative District:10
Pink-Pop (ESU):Pink-Odd Year, Not Warranted
Puget Sound Action Areas:Whidbey Island
Salmon Recovery Regions:Puget Sound
Sections:13
Steelhead-Pop (ESU):Steelhead-Puget Sound, Threatened
Township:T29NR02E
Watershed Administrative Unit:Whidbey Island
WRIA:Island
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