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Harrison Monona Ditch Bridge

Photos 

Harrison Monona Ditch Bridge

Sioux City Journal: March 1 1959

Enlarge

BH Photo #456245

Map 

Facts 

Overview
Through truss bridge over Harrison Monona Ditch on 340th Street
Location
Harrison County, Iowa, and Monona County, Iowa
Status
Damaged by flooding in 2011 and removed
History
Built 1925; rehabilitated 1985; damaged by flooding in 2011 and removed
Builder
- Iowa State Highway Commission of Ames, Iowa
Design
Pin-connected Pratt through truss with Howe lattice portal and strut bracings
Dimensions
Length of largest span: 163.1 ft.
Total length: 198.2 ft.
Deck width: 22.0 ft.
Vertical clearance above deck: 14.7 ft.
Approximate latitude, longitude
+41.86403, -96.02202   (decimal degrees)
41°51'50" N, 96°01'19" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/747165/4638968 (zone/easting/northing)
Quadrangle map:
Little Sioux
Land survey
T. 81 N., R. 45 W., Sec. 1
Average daily traffic (as of 2008)
10
Inventory numbers
IA 179830 (Iowa bridge number)
BH 13606 (Bridgehunter.com ID)
Inspection report (as of November 2009)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 49.8 (out of 100)
View more at BridgeReports.com

Update Log 

  • September 16, 2019: New photos from Melissa Brand-Welch
  • April 7, 2012: Updated by David Backlin: Updated status to Lost
  • January 8, 2012: Updated by Jason Smith: The bridge is now doomed after flood damage in 2011

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • David Backlin - us71 [at] cox [dot] net
  • Melissa Brand-Welch - melissabrandwelch [at] msn [dot] com

Comments 

Harrison Monona Ditch Bridge
Posted April 7, 2012, by David Backlin (us71 [at] cox [dot] net)

Omaha World Herald reports the bridge has been removed and will not be replaced.