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COLUMBUS DR over MAIN BR CHICAGO RIV.

Map 

Coordinates:
+41.88881, -87.62050
41°53'20" N, 87°37'14" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:COLUMBUS DR over MAIN BR CHICAGO RIV.
Structure number:016610100000000
Old structure number:000016610118759 (from 1992 edition)
Location:347 N & 301 E
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:269.0 ft. [82.0 m]
Total length:389.1 ft. [118.6 m]
Roadway width between curbs:89.9 ft. [27.4 m]
Deck width edge-to-edge:109.9 ft. [33.5 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1982
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: October 2014 

Status:Open, no restriction [A]
Average daily traffic:20,600 [as of 2014]
Truck traffic:16% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
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:81.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201481.0Structurally deficientPoorFairFair20600
November 201283.0Not deficientFairFairSatisfactory25400
December 201095.0Not deficientSatisfactorySatisfactoryGood25400
May 200995.0Not deficientGoodGoodGood23700
November 200695.0Not deficientGoodGoodGood23700
October 200495.0Not deficientGoodGoodGood10009
October 200295.0Not deficientGoodGoodGood10009
November 200095.0Not deficientGoodGoodGood10009
August 199895.0Not deficientGoodGoodGood10009
April 199695.0Not deficientGoodGoodGood10009
April 199495.0Not deficientGoodGoodGood-
August 199295.0Not deficientGoodGoodGood-
May 199195.0Not deficientGoodGoodGood-