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I- 55 WB ELEVATED over S BR CHICAGO RIVER

Map

Coordinates:
+41.83940, -87.66420
41°50'22" N, 87°39'51" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:I- 55 WB ELEVATED over S BR CHICAGO RIVER
Structure number:016108500000000
Old structure number:000016108526257 (from 1992 edition)
Location:1.1 M SW I-94
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:106.3 ft. [32.4 m]
Total length:387.2 ft. [118.0 m]
Roadway width between curbs:72.8 ft. [22.2 m]
Deck width edge-to-edge:76.1 ft. [23.2 m]
Vertical clearance below bridge:30.8 ft. [9.4 m]
Skew angle:15°
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2000
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:72,300 [as of 2015]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:93.7 tons [85.2 metric tons]
Inventory rating:56.3 tons [51.2 metric tons]
Sufficiency rating:93.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,065,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201593.0GoodGoodVery GoodGood-72300
August 201393.0GoodGoodVery GoodGood-71800
August 201193.0GoodGoodVery GoodGood-84550
October 200993.0GoodGoodVery GoodGood-85900
October 200793.0GoodGoodVery GoodGood-81600
October 200593.0GoodGoodVery GoodGood-80300
September 200393.0GoodVery GoodVery GoodGood-75200
October 200193.0GoodVery GoodVery GoodGood-67400
December 200093.0GoodVery GoodExcellentVery Good-58700
February 199878.0PoorPoorSatisfactoryFairSD72200
April 199679.0PoorPoorSatisfactoryFairSD66900
February 199590.0PoorPoorSatisfactorySatisfactorySD68700
September 199390.0PoorPoorSatisfactorySatisfactorySD62200
October 199265.0PoorFairSatisfactoryPoorSD61350
July 199165.0PoorFairSatisfactoryPoorSD61350