I-15 (SR-15) SBL over SR-78, INTCHG. X-ROAD


+39.48361, -111.97861
39°29'01" N, 111°58'43" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-15 (SR-15) SBL over SR-78, INTCHG. X-ROAD
Structure number:3F 435
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:87.9 ft. [26.8 m]
Total length:90.6 ft. [27.6 m]
Roadway width between curbs:40.7 ft. [12.4 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1985
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Prestressed concrete [5]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:17,450 [as of 2014]
Truck traffic:37% 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:Better than present minimum criteria [7]
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:96.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017FairSatisfactoryGoodSatisfactory1745096.2
March 2015FairGoodGoodSatisfactory733296.7
March 2013FairGoodGoodSatisfactory712596.7
March 2011FairGoodGoodSatisfactory720596.7
January 2009GoodGoodGoodGood720596.7
November 2007GoodGoodGoodGood631096.7
June 2005GoodGoodGoodGood631096.7
February 2003FairSatisfactoryGoodGood580596.7
November 2000FairSatisfactoryGoodGood520891.7
December 1998FairSatisfactoryGoodGood520891.7
January 1997GoodGoodVery GoodGood414891.8
May 1995GoodGoodVery GoodGood414896.7
June 1993GoodGoodVery GoodVery Good360096.7
April 1991GoodVery GoodVery GoodVery Good314596.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.536533300
Reinforced Concrete Decksq. ft.3,9452,6939702820
Reinforced Concrete Abutmentlinear ft.88549340
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2391567940