IA 57 over IC. RR

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.


+42.93611, -93.08611
42°56'10" N, 93°05'10" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IA 57 over IC. RR
Structure number:000000000027040
Location:at East jct. SR. S56
Purpose:Carries highway over railroad
Route classification:Minor Arterial (Rural) [06]
Length of largest span:105.0 ft. [32.0 m]
Total length:336.0 ft. [102.4 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:27.2 ft. [8.3 m]
Vertical clearance below bridge:22.3 ft. [6.8 m]
Owner:State Highway Agency [01]
Year built:1932
Year reconstructed:1977
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 13.5 / H 15 [2]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: August 2012

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:1,650 [as of 2011]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:37.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2012PoorSatisfactoryPoorPoor165037.4
August 2010PoorSatisfactoryPoorPoor166037.2
July 2008PoorGoodPoorFair159037.2
July 2006PoorGoodPoorFair169037.3
July 2004PoorGoodPoorFair229035.1
September 2003FairGoodFairSatisfactory298051.3
July 2001FairGoodFairSatisfactory298051.3
April 2000FairGoodFairFair337051.2
February 1999FairGoodFairFair351049.7
June 1997FairGoodSatisfactoryFair321048.3
February 1994FairGoodSatisfactorySatisfactory306065.1
December 1992FairGoodSatisfactorySatisfactory323065.1
November 1990FairGoodSatisfactorySatisfactory312065.1