The Duwamish River Boat Ramp is a public boat ramp located in Seattle, Washington. It provides access to the Duwamish River, which flows into Puget Sound. This boat ramp is designed primarily for small to medium-sized boats, including kayaks, canoes, and powerboats. The ramp is approximately 20 feet wide, allowing for easy launch and retrieval of boats.

According to the latest information available, the Duwamish River Boat Ramp is open to the public year-round, with no fees for use. It is operated by the City of Seattle Department of Parks and Recreation, ensuring that it is well-maintained and accessible to all.

In terms of permitted watercraft, the Duwamish River Boat Ramp allows for a wide range of vessels, so long as they are operated in accordance with local regulations. This may include restrictions on speed, noise, and other factors that could impact the environment or other users of the waterway.

Overall, the Duwamish River Boat Ramp is a valuable resource for boaters in the Seattle area, providing convenient access to a popular waterway and ensuring that everyone can enjoy safe and responsible use of the river and its surroundings.