C-21
Fixed · FixedC-21 is a fixed bridge with 17 ft of vertical clearance, measured to a local datum.
Clearances are from NOAA chart US5NY3KR, measured to a local datum. Actual clearance is lower whenever the water stands above that level. Always confirm against your vessel's air draft and the posted clearance gauge before transiting.
Pathr nautical charts
C-21 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.
Frequently asked
What is the clearance under C-21?+
C-21 is a fixed bridge with 17 ft of vertical clearance, measured to a local datum. 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.
Tides & conditions at this crossing
Clearance under C-21 shrinks as the water rises. Check the water level and marine conditions at the nearest NOAA station, Albany (51 mi away).
