Silverdale Shoal (Clam Island)

Clam, mussel, and oyster seasons OPEN for harvest year-round.

Harvest profile

Not much is known about Silverdale Shoal clam populations, but the site is expected to support populations of Manila clams and butter clams. This site is within an area that is conditionally approved for shellfish harvest by Washington Department of Health. Shellfish harvesters must check the DOH shellfish safety map for current health closure information before harvesting. Oysters are not expected to be common at this location. 


Silverdale Shoal (Clam Island) is boat access only. This site is exposed only at low tides and is surrounded by water at all times. The highest point on the shoal is located at approximately 47.635o N, 122.684o .

Nearest boat ramp: Silverdale Waterfront Park ramp (located on N.W. Byron Street in south Silverdale) is about 0.88 nautical miles by boat from Silverdale Shoal.


None. There are restrooms and other facilities at Silverdale Waterfront Park.

View full-size map on DOH website