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


+39.68089, -111.83956
39°40'51" N, 111°50'22" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-15 (SR-15) NBL over SR-28, INTCHG. X-RD
Structure number:1C 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:44.0 ft. [13.4 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:Latex Concrete or similar additive [3]

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:Good [7 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 2017FairSatisfactorySatisfactoryGood1327596.4
March 2015FairSatisfactorySatisfactoryGood780596.6
March 2013FairSatisfactoryGoodGood698396.7
March 2011FairSatisfactoryGoodGood704596.7
January 2009GoodGoodGoodGood704596.7
November 2007FairSatisfactoryGoodGood631096.7
June 2005FairSatisfactorySatisfactoryGood631096.7
February 2003FairSatisfactorySatisfactoryGood614896.7
November 2000GoodGoodGoodGood573891.7
December 1998GoodGoodGoodGood573891.7
January 1997GoodGoodGoodGood383891.8
May 1995GoodGoodVery GoodGood383896.7
June 1993GoodGoodVery GoodGood300096.8
April 1991GoodGoodVery GoodVery Good371596.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.83416267002
Reinforced Concrete Decksq. ft.7,4131,3295,4256590
Reinforced Concrete Abutmentlinear ft.1311072400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.41220620600