Historic Bridges of the U.S. | Black Hawk Bridge

Photos

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Portal

Photos taken Summer 1995 by Joe Elliott for the Historic American Engineering Record

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Overview

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Side view

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Close-up of suspended span

Vicinity map

Map links:

Overview: Cantilevered through truss bridge over the Mississippi River on IA 9 at Lansing
Status: Open to two-lane traffic
History: Built 1931; rehabilitated 1955
Builders: - McClintic-Marshall Co. of Chicago, Illinois
- Melvin B. Stone
Design: Cantilevered through truss
Dimensions: Length of largest span: 652.3 ft.
Total length: 1,630.7 ft.
Deck width: 21.0 ft.
Vertical clearance above deck: 15.0 ft.
Also called: Lansing Bridge
Approximate latitude, longitude: +43.36489, -91.21621 (decimal degrees)
43°21'54" N, 91°12'58" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/644531/4802881 (zone/easting/northing)
Land survey: T. 99 N., R. 3 W., Sec. 29
USGS topographic map: Lansing
Inventory numbers: IA 13520 (Iowa bridge number)
BH 12793 (Bridgehunter.com ID)
Inspection (as of 08/2007): Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 39.9 (out of 100)
Average daily traffic (as of 2006): 2,060

Black Hawk Bridge

Posted April 2, 2008, by bo sansing (rebelbo_28 [at] yahoo [dot] com)

this was the bridge used in the movie the straight story about the man on a riding lawnmower