Share:

I- 55 EB ELEVATED over S BR CHICAGO RIVER

Map

Coordinates:
+41.83915, -87.66407
41°50'21" N, 87°39'51" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I- 55 EB ELEVATED over S BR CHICAGO RIVER
Structure number:016108600000000
Old structure number:000016108626258 (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:68.9 ft. [21.0 m]
Deck width edge-to-edge:72.2 ft. [22.0 m]
Vertical clearance below bridge:30.8 ft. [9.4 m]
Skew angle:15°
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:1998
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:Good [7 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:98.0 tons [89.1 metric tons]
Inventory rating:61.7 tons [56.1 metric tons]
Sufficiency rating:93.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201593.0GoodGoodGoodGood-72300
August 201393.0GoodGoodGoodGood-71800
August 201193.0GoodGoodGoodGood-84550
October 200993.0GoodGoodGoodGood-85900
October 200793.0GoodGoodVery GoodGood-81600
October 200593.0GoodGoodVery GoodGood-80300
September 200393.0GoodVery GoodVery GoodGood-75200
October 200193.0GoodVery GoodVery GoodGood-67400
November 199993.0GoodExcellentVery GoodGood-72200
February 199879.0PoorPoorSatisfactoryFairSD69200
April 199690.0PoorPoorSatisfactorySatisfactorySD66900
February 199590.0PoorPoorSatisfactorySatisfactorySD68700
September 199390.0PoorPoorSatisfactorySatisfactorySD62200
October 199263.0PoorPoorSatisfactoryPoorSD61350
July 199163.0PoorPoorSatisfactoryPoorSD61350

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,3232,22010300
Deck
Reinforced Concrete Decksq. ft.29,30626,7812,52500
Substructure
Reinforced Concrete Columneach2222000
Reinforced Concrete Pier Walllinear ft.243243000
Reinforced Concrete Abutmentlinear ft.1491351400
Reinforced Concrete Pier Caplinear ft.392392000
Joints
Strip Seal Jointlinear ft.7807800
Assembly with Sealeach7878000
Bearings
Elastomeric Bearingeach4037030
Fixed Bearingeach1010000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.77406741000