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MICHIGAN AVE over VARIOUS CITY STREETS

Map 

Coordinates:
+41.88826, -87.62439
41°53'18" N, 87°37'28" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:MICHIGAN AVE over VARIOUS CITY STREETS
Structure number:016612100000000
Old structure number:000016612126642 (from 1992 edition)
Location:100E.& 340N.TO 200N.
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:47.9 ft. [14.6 m]
Total length:902.9 ft. [275.2 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:127.6 ft. [38.9 m]
Vertical clearance below bridge:10.2 ft. [3.1 m]
Owner:City or Municipal Highway Agency [04]
Year built:1921
Year reconstructed:1998
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:33
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: December 2014 

Status:Open, no restriction [A]
Average daily traffic:39,700 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Fair [5 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:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:76.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$18,015,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201476.0Functionally obsoleteFairGoodGood39700
January 201376.0Functionally obsoleteFairGoodGood37900
January 201176.0Functionally obsoleteFairGoodGood37900
July 200876.0Functionally obsoleteFairGoodGood33300
July 200677.0Not deficientGoodGoodGood33300
July 200477.0Not deficientGoodGoodGood43700
August 200277.0Not deficientGoodGoodGood43700
July 200065.0Not deficientFairFairFair33900
November 199877.0Not deficientVery GoodGoodGood33900
July 199547.0Structurally deficientPoorPoorPoor33900
March 199447.0Structurally deficientPoorPoorPoor33900
August 199265.0Structurally deficientPoorPoorPoor33900
December 199081.0Structurally deficientPoorFairSatisfactory33900