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MISSISSIPPI RIVER BRIDGE AT LANSING

New Bridge Design Overview


New and Existing Bridge Side By Side

New and existing Lansing Bridge side by side Click image to view large version

New and Existing Bridge Details

New Existing
Road width 40' 21'
Channel Width 750' 650'
Main bridge structure type Steel through-truss Steel through-truss
Total length of steel truss 1352' 1152'
Total length of bridge 1724' 1702'
Max height above normal water level 180' 165'
Channel clearance 60-64' 68'
Bridge deck type Reinforced concrete Welded steel grate
Bridge deck width 40' 21'
Driving lane widths 12' 10'
Shoulder widths 8' No shoulders
How the roadway grade changes across the bridge Continuous gradual curve Straight lines with sharp changes
Steepest roadway slope 6% 7%
Speed limit on the bridge 25 MPH 25 MPH

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