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:15.4 ft. [4.7 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]
Operating rating:73.3 tons [66.6 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:82.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201882.2FairSatisfactorySatisfactorySatisfactory-267000
January 201682.2FairSatisfactorySatisfactorySatisfactory-267000
January 201483.1FairSatisfactorySatisfactorySatisfactory-248000
January 201282.0FairSatisfactorySatisfactorySatisfactory-248000
November 201082.0FairSatisfactorySatisfactorySatisfactory-248000
November 200882.0FairSatisfactorySatisfactoryGood-248000
January 200786.2FairSatisfactorySatisfactoryGood-91560
February 200581.0FairSatisfactorySatisfactoryGoodFO230000
January 200382.6FairSatisfactorySatisfactoryGoodFO105622
November 200082.6FairSatisfactorySatisfactoryGoodFO105622
January 199982.0FairSatisfactorySatisfactoryGoodFO91560
January 199787.0FairSatisfactoryGoodGood-85300

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
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