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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

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,3232,323000
Deck
Reinforced Concrete Decksq. ft.27,86724,6173,25000
Substructure
Reinforced Concrete Columneach2424000
Reinforced Concrete Pier Walllinear ft.258258000
Reinforced Concrete Abutmentlinear ft.158158000
Reinforced Concrete Pier Caplinear ft.416416000
Joints
Strip Seal Jointlinear ft.7474000
Assembly with Sealeach7474000
Bearings
Elastomeric Bearingeach3603600
Fixed Bearingeach90900
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.7740694800