Washington /

Lake Washington Ship Canal

River in Washington · 288 acres · near Seattle

Aerial view of Lake Washington Ship Canal, August 2017
Aerial view of Lake Washington Ship Canal, August 2017 Photo: USDA Farm Service Agency, NAIP · Public domain · via USGS The National Map

The Lake Washington Ship Canal is a 288-acre river near Seattle in Washington, with 1 public boat ramp and 1 carry-in launch listed here.

New Zealand mudsnails

Washington State Department of Ecology lists this water as likely to contain New Zealand mudsnails; extra decontamination is advised when leaving it. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.

Washington State Department of Ecology · checked October 20, 2026

Boating rules

From the boating rules map of Washington Department of Ecology, read October 20, 2026. A map of rules is a guide: the regulation's text and the posted signs govern.

Boat launches on the Lake Washington Ship Canal

Community

Where people who fish, boat and paddle Lake Washington Ship Canal talk about it. Lake associations, clubs and local groups will be added as we find them.