79TH ST over I- 94 RYAN & CTA


+41.75097, -87.62497
41°45'03" N, 87°37'30" 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:13.1 ft. [4.0 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: July 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,900 [as of 2018]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Sufficiency rating:94.6
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

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactoryGoodSatisfactory1390094.6
September 2016GoodGoodGoodGood1280094.7
September 2014GoodGoodGoodGood1280094.7
October 2012GoodGoodGoodGood1720076.0
October 2010GoodGoodGoodGood1720094.1
December 2008GoodGoodGoodVery Good2080094.0
February 2006GoodGoodGoodVery Good2080094.0
July 2002GoodVery GoodVery GoodVery Good2080094.0
July 2000GoodVery GoodVery GoodVery Good1970094.0
November 1998GoodExcellentExcellentVery Good1970094.0
February 1997PoorPoorSatisfactorySerious2130045.4
July 1995PoorPoorSatisfactorySerious2130043.9
June 1994PoorPoorSatisfactorySerious2130043.9
November 1993PoorPoorSatisfactorySerious1960044.2
July 1992PoorPoorSatisfactorySerious1960044.2
February 1991PoorPoorSatisfactoryFair1960079.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,1571,1372000
Reinforced Concrete Decksq. ft.24,19523,0651,1001020
Reinforced Concrete Pier Walllinear ft.230228110
Reinforced Concrete Abutmentlinear ft.214206440
Reinforced Concrete Pier Caplinear ft.444440400
Compression Jointlinear ft.2171972000
Elastomeric Bearingeach48163200
Movable Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3823325000