Tilleman Bridge
Bascule spanTilleman Bridge has 32 ft of vertical clearance under its bascule span when closed, measured to the Great Lakes chart datum (IGLD 1985).
Clearances are from NOAA chart US5GRBCC, 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
Tilleman 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.
Frequently asked
What is the clearance under Tilleman Bridge?+
Tilleman Bridge has 32 ft of vertical clearance under its bascule span when closed, measured to the Great Lakes chart datum (IGLD 1985). 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.
