US Bridges

I 15 over I 15 & Sahara

Good

Clark County, Nevada · Las Vegas · Structure no. I 837R

Built
1995
30 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,612 ft
12 main spans
Daily traffic
10,700
2021 count
Owner
State
State Highway Agency

About this bridge

I 15 over I 15 & Sahara is a steel continuous stringer/multi-beam or girder carrying I 15 over I 15 & Sahara in Clark County, Nevada. It was built in 1995, so it is 30 years old, younger than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,700 vehicles a day, roughly 7% of them trucks, projected to reach 22,749 by 2040. The structure is 1,612 ft (491.3 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 15
CrossesI 15 & Sahara
LocationLas Vegas
RouteInterstate 15
CountyClark County
StateNevada
Coordinates36.14455, -115.17011
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.8 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20 + Mod
Structure length1,612 ft (491.3 m)
Longest span161 ft (49.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deck33 ft (10 m)

Traffic and service

Average daily traffic10,700 (2021)
Projected traffic22,749 by 2040
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 15 over I 15 & Sahara built?

It was built in 1995, making it 30 years old in 2025.

What condition is I 15 over I 15 & Sahara in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does I 15 over I 15 & Sahara carry?

About 10,700 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I 15 over I 15 & Sahara?

The structure is 1,612 ft (491.3 m) long with a longest span of 161 ft (49.1 m) and a deck 35 ft wide.

Who owns I 15 over I 15 & Sahara?

It is owned by the State Highway Agency.