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LAKE SHORE DRIVE over MAIN BR CHICAGO RIV

Map 

Coordinates:
+41.88865, -87.61396
41°53'19" N, 87°36'50" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:LAKE SHORE DRIVE over MAIN BR CHICAGO RIV
Structure number:016603000000000
Old structure number:000016603027328 (from 1992 edition)
Location:402 N & 520 E
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:264.1 ft. [80.5 m]
Total length:356.0 ft. [108.5 m]
Roadway width between curbs:80.7 ft. [24.6 m]
Deck width edge-to-edge:107.6 ft. [32.8 m]
Vertical clearance below bridge:24.9 ft. [7.6 m]
Owner:City or Municipal Highway Agency [04]
Year built:1937
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Closed Grating [4]
Wearing surface:Other [9]

Latest Available Inspection: October 2014 

Status:Open, no restriction [A]
Average daily traffic:124,500 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Poor [4 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]
Water adequacy appraisal:Superior to present desirable criteria [9]
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 but in a deteriorated condition [3]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:62.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201462.0Structurally deficientPoorFairSatisfactory124500
November 201255.0Functionally obsoleteFairSatisfactorySatisfactory108700
November 201076.0Functionally obsoleteSatisfactorySatisfactoryGood116109
November 200876.0Functionally obsoleteSatisfactorySatisfactoryGood126209
November 200676.0Functionally obsoleteSatisfactorySatisfactoryGood124409
October 200472.0Functionally obsoleteSatisfactorySatisfactoryGood112800
October 200294.0Not deficientSatisfactorySatisfactoryGood122000
November 200094.0Not deficientSatisfactorySatisfactoryGood163600
August 199894.0Not deficientSatisfactorySatisfactoryGood163600
April 199694.0Not deficientGoodSatisfactoryGood107700
April 199492.0Not deficientGoodGoodGood131400
August 199293.0Not deficientGoodGoodGood145800
November 199195.0Not deficientVery GoodVery GoodGood121200