I- 55 EB TO I-94 N over THROOP ST


+41.84386, -87.65443
41°50'38" N, 87°39'16" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I- 55 EB TO I-94 N over THROOP ST
Structure number:016269500000000
Old structure number:000016269531578 (from 1992 edition)
Location:0.7 MI. SW I-90,94
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:69.2 ft. [21.1 m]
Total length:180.5 ft. [55.0 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:29.2 ft. [8.9 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2016 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:20,500 [as of 2016]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:85.6 tons [77.8 metric tons]
Inventory rating:53.1 tons [48.3 metric tons]
Sufficiency rating:81.0

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201681.0GoodGoodGoodVery GoodFO20500
August 201481.0GoodGoodGoodVery GoodFO41900
September 201281.0GoodGoodGoodVery GoodFO41900
December 201077.0GoodGoodVery GoodVery GoodFO41900
January 200977.0GoodGoodVery GoodVery GoodFO41900
April 200777.0GoodGoodVery GoodVery Good-41900
July 200577.0GoodVery GoodVery GoodVery Good-41900
July 200377.0GoodVery GoodVery GoodVery Good-41900
August 200177.0GoodVery GoodVery GoodExcellent-32109
November 199981.0GoodExcellentExcellentExcellent-32109