Historic Bridges of the U.S. | Hannibal I-72 Bridge

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Overview: Through truss bridge over the Mississippi River on I-72/US 36 at Hannibal
Status: Open to four lanes of traffic
History: Opened Sept. 16, 2000
Design: Warren through truss
Dimensions: Length of largest span: 640.1 ft.
Total length: 4,490.3 ft.
Deck width: 81.0 ft.
Vertical clearance above deck: 17.4 ft.
Also called: Mark Twain Memorial Bridge (official name)
Approximate latitude, longitude: +39.72070, -91.35819 (decimal degrees)
39°43'15" N, 91°21'29" W (degrees°minutes'seconds")
Land survey: T. 57 N., R. 4 W., Sec. 21
Inventory numbers: MONBI 4076 (Missouri bridge number on the National Bridge Inventory)
BH 21993 (Bridgehunter.com ID)
Inspection
Average daily traffic (as of 2006): 11,000