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Puget Sound Disposal Sites

Puget Sound sites

Semi-Annual Dredge Meeting

The most recent Semi-Annual Agency & Tribal Coordination Meeting for federal navigation projects was held on June 25, 2015.  Click on the links below for PDF files of the agenda & presentations.  Thank you so much for your participation!

Dredging Project Updates:

Disposal Site Updates: 

Other Navigation Project Updates: 

Summary of DMMP Disposal Sites

 Click on site name for map and coordinates.  Closed sites do not have current Shoreline Permits.  Unused sites are no longer feasible for most dredge projects.

Water Body Site Name Site Type Status 

Puget Sound

Anderson/Ketron Nondispersive Closed 
Bellingham Bay Nondispersive Closed 
Commencement Bay Nondispersive Open
Elliott Bay Nondispersive Open 
Port Gardner Nondispersive Open 
Rosario Strait  Dispersive Open 
Port Townsend Dispersive Open 
Port Angeles Dispersive Open 
Grays Harbor Point Chehalis Dispersive; Estuarine Open
South Jetty Dispersive; Estuarine Open 
3.9-Mile SW Dispersive; Ocean Site unused
Willapa Bay Cape Shoalwater Dispersive; Estuarine  unused
Goose Point Dispersive; Estuarine  unused

Dispersive Disposal Site Fate and Transport Analysis

The DMMP investigated the fate and transport of dredged material placed at the dispersive dredged material placement sites within the Strait of Juan de Fuca and Puget Sound using site specific sediment data and a recent numerical model developed for the Puget Sound Basin.  This study, completed in September 2012, was to determine if hydrodynamic conditions indicated the potential for dredged materials to be transported in the vicinity of critical shellfish habitat identified by the Lower Elwha Klallam Tribe (LEKT) near Port Angeles, Sequim, and Port Townsend, Washington.  Links to the final study report are here: