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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,1571,157000
Reinforced Concrete Decksq. ft.24,19523,0951,10000
Reinforced Concrete Pier Walllinear ft.230230000
Reinforced Concrete Abutmentlinear ft.214213010
Reinforced Concrete Pier Caplinear ft.444444000
Compression Jointlinear ft.217217000
Elastomeric Bearingeach48163200
Movable Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.382380200