I 15 over ALTA AVE


+36.16620, -115.15964
36°09'58" N, 115°09'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 15 over ALTA AVE
Structure number:H 935
Location:LAS VEGAS
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:77.1 ft. [23.5 m]
Total length:154.2 ft. [47.0 m]
Roadway width between curbs:163.1 ft. [49.7 m]
Deck width edge-to-edge:167.0 ft. [50.9 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:12°
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:267,000 [as of 2014]
Truck traffic:6% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:82.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018FairSatisfactorySatisfactorySatisfactory26700082.2
January 2016FairSatisfactorySatisfactorySatisfactory26700082.2
January 2014FairSatisfactorySatisfactorySatisfactory24800083.1
January 2012FairSatisfactorySatisfactorySatisfactory24800082.0
November 2010FairSatisfactorySatisfactorySatisfactory24800082.0
November 2008FairSatisfactorySatisfactoryGood24800082.0
January 2007FairSatisfactorySatisfactoryGood9156086.2
February 2005FairSatisfactorySatisfactoryGood23000081.0
January 2003FairSatisfactorySatisfactoryGood10562282.6
November 2000FairSatisfactorySatisfactoryGood10562282.6
January 1999FairSatisfactorySatisfactoryGood9156082.0
January 1997FairSatisfactoryGoodGood8530087.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Prestressed Concrete Closed Web/Box Girderlinear ft.1,3881,3137500
Reinforced Concrete Closed Web/Box Girderlinear ft.3082981000
Reinforced Concrete Decksq. ft.25,751025,75100
Reinforced Concrete Columneach2222000
Reinforced Concrete Abutmentlinear ft.341337220
Reinforced Concrete Pier Caplinear ft.8585000
Pourable Jointlinear ft.3410300041
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1541140364
Reinforced Concrete Bridge Raillinear ft.4634234000