Passyunk Avenue
Bascule drawbridgePassyunk Avenue is a bascule drawbridge with 50 ft of clearance closed, measured to mean high water. Its open clearance is not charted.
Clearances are from NOAA chart US5PHLCD, 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
Passyunk Avenue 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
(b) The Passyunk Avenue bridge, mile 3.5 at Philadelphia, shall open on signal at all times if at least four hours notice is given. Public vessels of the United States shall be passed as soon as possible at any time.
Source: US Coast Guard drawbridge regulations, 33 CFR 117.905 (Schuylkill River). Confirm before transiting.
Frequently asked
What is the clearance under Passyunk Avenue?+
Passyunk Avenue is a bascule drawbridge with 50 ft of clearance closed, measured to mean high water. Its open clearance is not charted. 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 Passyunk Avenue to open?+
Contact the bridge tender on VHF-FM, or sound the required signal. Operating schedule: (b) The Passyunk Avenue bridge, mile 3.5 at Philadelphia, shall open on signal at all times if at least four hours notice is given. Public vessels of the United States shall be passed as soon as possible at any time.
Tides & conditions at this crossing
Clearance under Passyunk Avenue shrinks as the water rises. Check the water level and marine conditions at the nearest NOAA station, Penrose Avenue Bridge (2 mi away).

