91ST ST over I- 94 RYAN & CTA


+41.72911, -87.62068
41°43'45" N, 87°37'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:91ST ST over I- 94 RYAN & CTA
Structure number:016114100000000
Old structure number:000016114126278 (from 1992 edition)
Location:0.5 M N US 12
Purpose:Carries highway over highway and railroad
Route classification:Local (Urban) [19]
Length of largest span:83.7 ft. [25.5 m]
Total length:213.9 ft. [65.2 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:71.2 ft. [21.7 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:2004
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
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: September 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:5,000 [as of 1997]
Truck traffic:3% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:86.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,153,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016GoodVery GoodVery GoodVery Good500086.5
October 2014GoodVery GoodVery GoodVery Good500086.5
October 2012GoodVery GoodVery GoodVery Good500086.5
November 2010GoodVery GoodVery GoodVery Good500986.7
March 2009GoodVery GoodVery GoodVery Good500986.7
April 2007GoodExcellentExcellentVery Good500977.9
August 2005PoorPoorSatisfactoryPoor500947.7
December 2003PoorPoorSatisfactoryFair500962.6
February 2002PoorPoorSatisfactoryFair500962.6
February 2000PoorPoorSatisfactoryFair500962.6
September 1998FairFairSatisfactoryFair500964.6
September 1996FairSatisfactoryGoodSatisfactory-92.0
June 1994FairSatisfactoryGoodSatisfactory-92.0
November 1993FairSatisfactoryGoodSatisfactory-92.0
July 1992FairSatisfactoryGoodSatisfactory-92.0
February 1991FairSatisfactoryGoodSatisfactory-92.0