IH 20 WB over IH 20 BUS


+31.60640, -102.84563
31°36'23" N, 102°50'44" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IH 20 WB over IH 20 BUS
Structure number:062380000404033
Location:IH 20 BUS@ IH 20
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:65.0 ft. [19.8 m]
Total length:167.0 ft. [50.9 m]
Roadway width between curbs:37.1 ft. [11.3 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:41°
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,440 [as of 2013]
Truck traffic:62% of total traffic
Deck condition:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:94.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairGoodGoodSatisfactory544094.5
August 2015FairGoodGoodSatisfactory544095.5
August 2013FairGoodGoodSatisfactory459095.6
September 2011FairGoodGoodSatisfactory445095.6
August 2009FairGoodGoodSatisfactory694095.3
August 2007FairGoodGoodSatisfactory562095.5
January 2006FairGoodGoodSatisfactory543095.5
January 2004GoodVery GoodVery GoodGood599095.4
February 2002GoodVery GoodGoodGood534087.6
March 2000GoodVery GoodGoodGood391088.8
June 1998GoodVery GoodVery GoodGood307090.5
November 1996GoodVery GoodVery GoodGood307090.5
November 1994GoodGoodVery GoodGood332090.3
October 1992GoodGoodVery GoodGood367090.0
July 1990GoodVery GoodVery GoodVery Good363090.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.990986400
Reinforced Concrete Decksq. ft.6,6336,633000
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.106103300
Reinforced Concrete Pier Caplinear ft.9893500
Elastomeric Bearingeach3636000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.378378000