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MICHIGAN AVE over VARIOUS CITY STS

Map 

Coordinates:
+41.89174, -87.62415
41°53'30" N, 87°37'27" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:MICHIGAN AVE over VARIOUS CITY STS
Structure number:016612000000000
Old structure number:000016612026812 (from 1992 edition)
Location:100 E & 365 TO 530 N
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:41.0 ft. [12.5 m]
Total length:1110.9 ft. [338.6 m]
Roadway width between curbs:80.1 ft. [24.4 m]
Deck width edge-to-edge:141.1 ft. [43.0 m]
Vertical clearance below bridge:13.5 ft. [4.1 m]
Owner:City or Municipal Highway Agency [04]
Year built:1920
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:32
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: June 2014 

Status:Open, no restriction [A]
Average daily traffic:39,700 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.4

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201479.4Functionally obsoleteSatisfactoryFairFair39700
July 201279.6Functionally obsoleteSatisfactoryFairSatisfactory37900
July 201081.8Functionally obsoleteSatisfactoryFairSatisfactory37900
November 200782.1Functionally obsoleteSatisfactoryFairSatisfactory33300
November 200581.5Functionally obsoleteSatisfactoryFairSatisfactory43700
November 200381.5Functionally obsoleteSatisfactoryFairSatisfactory43700
November 200182.0Functionally obsoleteSatisfactoryFairSatisfactory33909
November 199982.0Functionally obsoleteSatisfactoryFairSatisfactory33900
July 199782.0Functionally obsoleteSatisfactoryFairSatisfactory33900
July 199580.9Functionally obsoleteGoodFairSatisfactory33900
July 199492.3Functionally obsoleteGoodSatisfactorySatisfactory33900
September 199219.3Structurally deficient---33900
October 199141.5Structurally deficientPoorSeriousSerious33900