Duluth Ship Canal Bridge
Lift drawbridgeDuluth Ship Canal Bridge is a lift drawbridge with 15 ft of clearance closed, measured to the Great Lakes chart datum (IGLD 1985). Open, it is charted at 141 ft.
Clearances are from NOAA chart US5DLHDF, measured to the Great Lakes chart datum (IGLD 1985). 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
Duluth Ship Canal 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
We don't have this bridge's operating rule yet. Many drawbridges open on a schedule or need advance notice. Check 33 CFR 117 for District of Columbia or call the tender before you plan around it.
Frequently asked
What is the clearance under Duluth Ship Canal Bridge?+
Duluth Ship Canal Bridge is a lift drawbridge with 15 ft of clearance closed, measured to the Great Lakes chart datum (IGLD 1985). Open, it is charted at 141 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 Duluth Ship Canal Bridge to open?+
Contact the bridge tender on VHF-FM, or sound the required signal. We don't have this bridge's operating rule yet. Many drawbridges open on a schedule or need advance notice. Check 33 CFR 117 for District of Columbia or call the tender before you plan around it.
