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GRAND AVE over N BR CHICAGO RIVER

Map 

Coordinates:
+41.89143, -87.64076
41°53'29" N, 87°38'27" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:GRAND AVE over N BR CHICAGO RIVER
Structure number:016602100000000
Old structure number:000016602126639 (from 1992 edition)
Location:462 W & 900 N
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:188.0 ft. [57.3 m]
Total length:270.0 ft. [82.3 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:60.0 ft. [18.3 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:City or Municipal Highway Agency [04]
Year built:1913
Year reconstructed:1974
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: November 2014 

Status:Open, no restriction [A]
Average daily traffic:11,100 [as of 2014]
Truck traffic:11% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
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:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:In place but re-evaluation of design suggested [4]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:29.3 tons [26.6 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:24.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,139,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201424.9Structurally deficientSatisfactorySeriousSerious11100
November 201245.6Structurally deficientSatisfactoryPoorFair11100
November 201044.7Structurally deficientSatisfactoryPoorSatisfactory11700
November 200849.5Structurally deficientSatisfactoryPoorSatisfactory14600
November 200673.4Functionally obsoleteSatisfactorySatisfactorySatisfactory14600
October 200474.2Functionally obsoleteSatisfactorySatisfactorySatisfactory9709
October 200274.2Functionally obsoleteSatisfactorySatisfactorySatisfactory9709
November 200074.2Functionally obsoleteSatisfactorySatisfactorySatisfactory9700
July 199849.9Structurally deficientFairPoorSatisfactory9700
June 199649.9Structurally deficientFairPoorSatisfactory9700
August 199346.5Structurally deficientPoorPoorSatisfactory9700
March 199149.7Structurally deficientFairPoorSatisfactory9700