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MICHIGAN AVE over VARIOUS CITY STS

Map

Coordinates:
+41.89160, -87.62414
41°53'30" N, 87°37'27" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MICHIGAN AVE over VARIOUS CITY STS
Structure number:016612000000000
Old structure number:000016612026812 (from 1992 edition)
Location:100E 365N TO 530N
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:13.1 ft. [4.0 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 2016

Good/Fair/Poor Condition:Fair
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]
Sufficiency rating:79.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2016FairSatisfactoryFairFair3970079.4
June 2014FairSatisfactoryFairFair3970079.4
July 2012FairSatisfactoryFairSatisfactory3790079.6
July 2010FairSatisfactoryFairSatisfactory3790081.8
November 2007FairSatisfactoryFairSatisfactory3330082.1
November 2005FairSatisfactoryFairSatisfactory4370081.5
November 2003FairSatisfactoryFairSatisfactory4370081.5
November 2001FairSatisfactoryFairSatisfactory3390982.0
November 1999FairSatisfactoryFairSatisfactory3390082.0
July 1997FairSatisfactoryFairSatisfactory3390082.0
July 1995FairGoodFairSatisfactory3390080.9
July 1994FairGoodSatisfactorySatisfactory3390092.3
September 1992----3390019.3
October 1991PoorPoorSeriousSerious3390041.5