91ST ST over I- 94 RYAN & CTA


+41.72902, -87.62475
41°43'44" N, 87°37'29" 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:15.7 ft. [4.8 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]
Operating rating:98.0 tons [89.1 metric tons]
Inventory rating:45.7 tons [41.5 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201686.5GoodVery GoodVery GoodVery Good-5000
October 201486.5GoodVery GoodVery GoodVery Good-5000
October 201286.5GoodVery GoodVery GoodVery Good-5000
November 201086.7GoodVery GoodVery GoodVery Good-5009
March 200986.7GoodVery GoodVery GoodVery Good-5009
April 200777.9GoodExcellentExcellentVery GoodFO5009
August 200547.7PoorPoorSatisfactoryPoorSD5009
December 200362.6PoorPoorSatisfactoryFairSD5009
February 200262.6PoorPoorSatisfactoryFairSD5009
February 200062.6PoorPoorSatisfactoryFairSD5009
September 199864.6FairFairSatisfactoryFairFO5009
September 199692.0FairSatisfactoryGoodSatisfactoryFO-
June 199492.0FairSatisfactoryGoodSatisfactoryFO-
November 199392.0FairSatisfactoryGoodSatisfactoryFO-
July 199292.0FairSatisfactoryGoodSatisfactoryFO-
February 199192.0FairSatisfactoryGoodSatisfactoryFO-