US 93 over Colorado River


+36.00667, -114.73833
36°00'24" N, 114°44'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 93 over Colorado River
Structure number:02685
Location:Hoover Dam, NV border
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:120.1 ft. [36.6 m]
Total length:1905.9 ft. [580.9 m]
Roadway width between curbs:73.5 ft. [22.4 m]
Deck width edge-to-edge:87.9 ft. [26.8 m]
Owner:State Highway Agency [01]
Year built:2010
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:9
Main spans material:Concrete [1]
Main spans design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:13,400 [as of 2012]
Truck traffic:26% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:52.9 tons [48.1 metric tons]
Inventory rating:40.9 tons [37.2 metric tons]
Sufficiency rating:94.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201594.2GoodGoodGoodGood-13400
January 201394.2GoodGoodGoodGood-13400

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Closed Web/Box Girderlinear ft.7,2647,264000
Steel Protective Coatingsq. ft.9,9719,87100100
Reinforced Concrete Decksq. ft.167,54658,641108,90500
Prestressed Concrete Archlinear ft.2,4706781,79200
Steel Pin or Pin & Hangar Assemblyeach960960000
Prestressed Concrete Columneach3027210
Reinforced Concrete Abutmentlinear ft.1761562000
Reinforced Concrete Pile Cap/Footinglinear ft.46261370
Prestressed Concrete Pier Caplinear ft.1,08676632000
Assembly with Sealeach1761522400
Movable Bearingeach2020000
Fixed Bearingeach44000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,9061,906000
Reinforced Concrete Bridge Raillinear ft.5,7185,717100