Regulated Navigation Area; Lake Washington, Seattle, WA
Published Date: 7/2/2026
Rule
Summary
From July 30 to August 2, 2026, the Coast Guard will enforce special boating rules on parts of Lake Washington during Seafair events. Boaters must slow down to 7 mph or less to keep waves small and everyone safe. This affects all vessels in the area between 8 a.m. and 6 p.m., helping prevent accidents during busy event days.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Temporary 7 mph speed limit
If you operate a vessel on portions of Lake Washington in Seattle, Washington, you must travel at a speed that creates minimum wake — 7 miles per hour or less — between 8 a.m. and 6 p.m. daily from July 30, 2026 through August 2, 2026. This rule applies to all vessels and persons transiting the regulated navigation area, unless a higher speed is needed to maintain bare steerageway.
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Key Dates
Department and Agencies
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Previous / Next Documents
Previous: 2026-13413 — Special Local Regulation, Seattle Seafair Unlimited Hydroplane Race
From July 30 to August 2, 2026, the Coast Guard will enforce special rules on parts of Lake Washington during the Seattle Seafair Unlimited Hydroplane Race to keep everyone safe. Boats and people in the race area must follow directions from Coast Guard and other law enforcement officers between 8 a.m. and 6 p.m. each day. This means some areas will have restricted access, so plan ahead if you’re on the water!
Next: 2026-13418 — Safety Zones; Annual Firework Displays Within the Captain of the Port, Puget Sound Area of Responsibility
The Coast Guard is stepping up to keep everyone safe during the big annual fireworks shows in Puget Sound from July to September 2026. If you’re boating near these events, you’ll need to follow the Coast Guard’s directions and stay clear of the 450-yard safety zones around the launch sites. These rules help prevent accidents and keep the fun going without a hitch—no extra fees, just smooth sailing and safe celebrations!