Rating:
58906
{70}%
1 vote
US20 Iowa River Bridge
Description
This bridge is significant because it was built with techniques that greatly reduced the impact on the sensitive wildlife area it crosses. The spans were built east of the crossing and "launched" across the valley when complete. This is the first large span in the US to use this technique.
For info and construction videos from HNTB go here:
http://www.iowadot.gov/iowariverbridge/1b_bridge.htm
Facts
- Overview
- Girder bridge over Iowa River on US 20
- Location
- Hardin County, Iowa
- Status
- Open to traffic
- History
- Built 2003
- Builders
- - Howard, Needles, Tammen & Bergendoff Corporation of Kansas City, Kansas
- Iowa Department of Transportation of Ames, Iowa
- Jensen Construction Co. of Des Moines, Iowa & Sand Springs, Oklahoma
- Design
- Girder
- Dimensions
-
Length of largest span: 302.2 ft.
Total length: 1,639.2 ft.
Deck width: 78.7 ft.
- Approximate latitude, longitude
- +42.43939, -93.07143 (decimal degrees)
42°26'22" N, 93°04'17" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 15/494125/4698565 (zone/easting/northing)
- Quadrangle map:
- Steamboat Rock
- Average daily traffic (as of 2015)
- 8,300
- Inventory numbers
- IA 608350 (Iowa bridge number)
BH 58906 (Bridgehunter.com ID)
- Inspection report (as of August 2016)
- Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 98.8 (out of 100)
View more at BridgeReports.com
Update Log
- August 9, 2014: New Street View added by Luke
- November 29, 2013: Updated by Luke Harden: Corrected a builder
- November 29, 2013: Added by Clark Vance
Sources
- Clark Vance - cvance [at] dogmail [dot] com
- Luke