Washington / Lake Union /

Sunnyside Avenue North Boat Ramp

Sunnyside Avenue North Boat Ramp is a public boat ramp on Lake Union near Seattle, Washington.

Aerial view of the ramp apron beside a crowded marina, with the road and parking beside it, August 2017
Aerial view of the ramp apron beside a crowded marina, with the road and parking beside it, August 2017 Photo: USDA Farm Service Agency, NAIP · Public domain · via USGS The National Map
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

Status not reported No closure has been posted for this launch, but its agency does not publish open or closed status. Check with the managing agency before you tow.

At the launch

Type
Boat ramp
Website
seattle.gov
Coordinates
47.65024, -122.33071

Directions (Google) Apple Maps

Boating rules

  • No-discharge zone: WAC 173-228 bans vessel sewage discharges, whether treated or not, in the No Discharge Zone. It became effective May 10, 2018. · all of Lake Union rule

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.

Conditions

On Lake Union

Lake in Washington. All launches on Lake Union.

Community

Where people who use Lake Union talk about it.

Nearby launches

Sources

Why it is listed as public: www.seattle.gov: Sunnyside offers a single pier and a wide ramp and is one of Seattle's free of charge all purpose ramps.. Something wrong, or is this launch private? Send a correction; it goes to a person.