The Coast Guard will enforce special local regulations for the Portland Dragon Boat Races from September 7 through 8, 2024 to provide for the safety of life on navigable waterways during this event. Our regulation for marine events within the Thirteenth Coast Guard District identifies the regulated area for this event in Portland, OR. During the enforcement periods, entry of vessels or persons into the regulated area is prohibited unless specifically authorized by the Captain of the Port, Sector Columbia River or the Patrol Commander. Vessels permitted to transit the area must comply with the lawful directions from the Patrol Commander or any official patrol vessel.
Source: Federal Register USCG
Link: Special Local Regulations; Marine Event on the Willamette River, Portland, OR