Hood Canal Estuary Restoration at Cattail Lake

Location: Kitsap County, WA
Client: Science Applications International Corporation

Cattail Lake, adjacent to the Hood Canal, is an eight-acre, artificially impounded freshwater lake that has been isolated from tidal influences for more than 60 years. Otak identified an opportunity to restore tidal conditions to the lake as mitigation for the construction of security facilities at the Naval Base. The project includes design of a replacement bridge and removal of two culverts to restore intertidal functions and provide access for anadromous fish to the watershed. Selective revegetation provides native species for reestablishment of intertidal, riparian and upland habitats. Otak successfully prepared the mitigation design to accompany permit applications and played a key role in discussions and negotiations with the Army Corps of Engineers, National Marine Fisheries and U.S. Fish and Wildlife Services, Washington State Department of Ecology and Washington Department of Fish and Wildlife.