I-15 (SR-15) SBL over SR-28, INTCHG. X-RD


+39.68188, -111.83868
39°40'55" N, 111°50'19" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-15 (SR-15) SBL over SR-28, INTCHG. X-RD
Structure number:3C 714
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:166.0 ft. [50.6 m]
Total length:169.6 ft. [51.7 m]
Roadway width between curbs:40.7 ft. [12.4 m]
Deck width edge-to-edge:44.3 ft. [13.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:48°
Owner:State Highway Agency [01]
Year built:1983
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:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,275 [as of 2014]
Truck traffic:32% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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:96.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017FairSatisfactorySatisfactorySatisfactory1327596.4
March 2015FairSatisfactorySatisfactorySatisfactory780596.6
March 2013FairSatisfactoryGoodSatisfactory804396.6
March 2011FairGoodGoodSatisfactory704596.7
January 2009FairGoodGoodSatisfactory704596.7
November 2007FairSatisfactoryGoodGood631096.7
June 2005FairSatisfactorySatisfactoryGood631096.7
February 2003FairSatisfactorySatisfactoryGood614896.7
November 2000GoodGoodGoodGood573891.7
December 1998GoodGoodGoodGood573891.7
January 1997GoodGoodGoodGood383891.8
May 1995GoodGoodVery GoodGood383896.7
June 1993GoodGoodVery GoodGood360096.7
April 1991GoodGoodVery GoodGood371596.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.841084100
Reinforced Concrete Decksq. ft.7,48307,469140
Reinforced Concrete Abutmentlinear ft.133785320
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.4123308200