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I 74 EB over CITY STREETS & RR

Map

Coordinates:
+41.53072, -90.51489
41°31'51" N, 90°30'54" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 74 EB over CITY STREETS & RR
Structure number:000000000604080
Location:4.3 MI. S OF JCT I-80
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:102.0 ft. [31.1 m]
Total length:3104.2 ft. [946.1 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:27.6 ft. [8.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:55°
Owner:State Highway Agency [01]
Year built:1975
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:41
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:25,250 [as of 2015]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:67.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016FairSatisfactoryFairSatisfactory2525067.0
August 2014FairSatisfactoryFairSatisfactory2440067.0
August 2012FairSatisfactoryFairSatisfactory2155068.0
July 2010FairSatisfactoryFairSatisfactory2385064.0
July 2008FairSatisfactoryFairSatisfactory2390064.0
July 2006FairSatisfactoryFairSatisfactory2390068.0
July 2004FairSatisfactoryFairSatisfactory2380068.0
August 2002FairSatisfactoryFairSatisfactory2485068.0
August 2000PoorSatisfactoryPoorSatisfactory2280052.0
October 1998PoorGoodPoorGood2070052.0
October 1996PoorGoodPoorGood2035052.0
October 1994FairGoodFairGood1965068.0
October 1992FairGoodFairVery Good1570068.0
October 1990FairGoodSatisfactoryVery Good1875079.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.19,6859,7378,8981,0500
Steel Protective Coatingsq. ft.197,065185,7389,9841,3430
Steel Stringerlinear ft.38823815000
Steel Protective Coatingsq. ft.4,1454,145000
Deck
Reinforced Concrete Decksq. ft.130,885108,18021,4251,2800
Wearing Surfacessq. ft.120,523119,2111,2001120
Superstructure
Steel Floor Beamlinear ft.4,0323,9646800
Steel Protective Coatingsq. ft.22,00022,000000
Steel Pin or Pin & Hangar Assemblyeach5050000
Substructure
Reinforced Concrete Columneach10694840
Reinforced Concrete Abutmentlinear ft.60402000
Concrete Protective Coatingsq. ft.189189000
Reinforced Concrete Pier Caplinear ft.1,4811,028420330
Joints
Assembly without Seal Jointlinear ft.443443000
Bearings
Movable Bearingeach133133000
Fixed Bearingeach113113000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.6,2186,218000