Park Bridge
Bascule drawbridgePark Bridge is a bascule drawbridge with 29 ft of clearance closed, measured to mean high water. Open, it is charted at 143 ft.
Clearances are from NOAA chart US5WA15M, measured to mean high water. Actual clearance is lower whenever the water stands above that level, as at higher tides and in storm surge. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.
Pathr nautical charts
Park Bridge on the chart
Find the bridge and its charted vertical clearance in one view. Select a pin to compare nearby bridges, see open and closed clearances where charted, and open its operating details.
How to request an opening
(2) The draw of the South Park Bridge, mile 3.8, need not be opened for the passage of vessels from 6:30 a.m. to 8:30 a.m. and from 3:30 p.m. to 5:30 p.m., Monday through Friday except, Federal holidays, other than Columbus Day. (3) Between the hours of 11 p.m. and 7 a.m., Monday through Sunday, the South Park Bridge shall open if at least a 12 hour notice is given by telephone or VHF radio to the drawtender at the South Park Bridge. If emergency responders require a bridge opening between 11 p.m. and 7 a.m., the South Park Bridge shall open within 45 minutes from initial notification to the Fremont Bridge operator. Vessels engaged in sea-trials or dredging activities may request a standby drawtender to open the bridge, on demand, during sea-trials and/or dredging operations, if at least a 24 hour notice is given to the South Park Bridge drawtender. (b) The following bridges shall open on
Source: US Coast Guard drawbridge regulations, 33 CFR 117.1041 (Duwamish Waterway). Confirm before transiting.
Frequently asked
What is the clearance under Park Bridge?+
Park Bridge is a bascule drawbridge with 29 ft of clearance closed, measured to mean high water. Open, it is charted at 143 ft. These figures are from NOAA chart data. Real clearance drops whenever the water stands above the level they are measured to, so leave a margin for your air draft.
How do I get Park Bridge to open?+
Contact the bridge tender on VHF-FM, or sound the required signal. Operating schedule: (2) The draw of the South Park Bridge, mile 3.8, need not be opened for the passage of vessels from 6:30 a.m. to 8:30 a.m. and from 3:30 p.m. to 5:30 p.m., Monday through Friday except, Federal holidays, other than Columbus Day. (3) Between
Tides & conditions at this crossing
Clearance under Park Bridge shrinks as the water rises. Check the water level and marine conditions at the nearest NOAA station, Duwamish Waterway, Eighth Ave. South (1 mi away).
