79TH ST over I- 94 RYAN & CTA


+41.75091, -87.62534
41°45'03" N, 87°37'31" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:79TH ST over I- 94 RYAN & CTA
Structure number:016114400000000
Old structure number:000016114426281 (from 1992 edition)
Location:2 M N US 12
Purpose:Carries highway overpass over highway and railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:75.8 ft. [23.1 m]
Total length:192.9 ft. [58.8 m]
Roadway width between curbs:89.9 ft. [27.4 m]
Deck width edge-to-edge:107.0 ft. [32.6 m]
Vertical clearance below bridge:15.4 ft. [4.7 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1959
Year reconstructed:1999
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: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:12,800 [as of 2014]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
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:78.8 tons [71.6 metric tons]
Inventory rating:47.4 tons [43.1 metric tons]
Sufficiency rating:94.7
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,995,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201694.7GoodGoodGoodGoodFO12800
September 201494.7GoodGoodGoodGoodFO12800
October 201276.0GoodGoodGoodGoodFO17200
October 201094.1GoodGoodGoodGoodFO17200
December 200894.0GoodGoodGoodVery GoodFO20800
February 200694.0GoodGoodGoodVery Good-20800
July 200294.0GoodVery GoodVery GoodVery Good-20800
July 200094.0GoodVery GoodVery GoodVery Good-19700
November 199894.0GoodExcellentExcellentVery Good-19700
February 199745.4PoorPoorSatisfactorySeriousSD21300
July 199543.9PoorPoorSatisfactorySeriousSD21300
June 199443.9PoorPoorSatisfactorySeriousSD21300
November 199344.2PoorPoorSatisfactorySeriousSD19600
July 199244.2PoorPoorSatisfactorySeriousSD19600
February 199179.1PoorPoorSatisfactoryFairSD19600