Share:

FM over LITTLE SIOUX RIVER

Map 

Coordinates:
+41.96389, -95.97222
41°57'50" N, 95°58'20" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:FM over LITTLE SIOUX RIVER
Structure number:000000000250230
Location:083443301
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:149.9 ft. [45.7 m]
Total length:316.0 ft. [96.3 m]
Roadway width between curbs:20.0 ft. [6.1 m]
Deck width edge-to-edge:21.3 ft. [6.5 m]
Vertical clearance above deck:13.8 ft. [4.2 m]
Owner:County Highway Agency [02]
Year built:1958
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2014 

Status:Posted for other load-capacity restriction [R]
Average daily traffic:320 [as of 2012]
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:38.8 tons [35.3 metric tons]
Inventory rating:23.5 tons [21.4 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:35.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201435.8Structurally deficientPoorPoorFair320
July 201247.5Structurally deficientPoorPoorFair320
May 201055.4Structurally deficientPoorFairFair400
May 200857.5Not deficientFairSatisfactoryFair400
June 200748.7Not deficientGoodGoodVery Good190
May 200548.7Not deficientGoodGoodVery Good190
June 200348.5Not deficientGoodGoodVery Good300
June 200148.5Not deficientGoodGoodVery Good300
May 199844.6Functionally obsoleteGoodGoodVery Good220
February 199644.8Functionally obsoleteGoodGoodVery Good130
March 199444.8Functionally obsoleteGoodGoodVery Good130
May 199244.8Functionally obsoleteVery GoodGoodVery Good130
April 199044.8Functionally obsoleteVery GoodGoodVery Good120