Share:

MICHIGAN AVE over I- 55 STEVENSON

Map 

Coordinates:
+41.84811, -87.62366
41°50'53" N, 87°37'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:MICHIGAN AVE over I- 55 STEVENSON
Structure number:016018400000000
Old structure number:000016018403973 (from 1992 edition)
Location:1 M E I-90,94
Purpose:Carries highway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:83.0 ft. [25.3 m]
Total length:215.2 ft. [65.6 m]
Roadway width between curbs:64.0 ft. [19.5 m]
Deck width edge-to-edge:80.1 ft. [24.4 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1994
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: November 2014 

Status:Open, no restriction [A]
Average daily traffic:11,100 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:68.4 tons [62.2 metric tons]
Inventory rating:43.5 tons [39.5 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.7
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$4,221,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201479.7Functionally obsoleteGoodFairGood11100
December 201292.7Functionally obsoleteGoodGoodGood13400
January 201193.3Functionally obsoleteGoodGoodGood13400
January 200993.2Functionally obsoleteGoodGoodGood16300
December 200693.6Functionally obsoleteGoodGoodGood8150
January 200375.8Functionally obsoleteGoodGoodGood19400
July 199875.8Functionally obsoleteVery GoodVery GoodGood18000
February 199676.3Functionally obsoleteVery GoodVery GoodGood10500
January 199575.9Functionally obsoleteExcellentExcellentGood10500
September 199374.9Functionally obsoleteFairGoodSatisfactory10500
August 199175.9Functionally obsoleteSatisfactoryGoodSatisfactory10500