US Bridges

I 15 over Dry Wash

Fair

Clark County, Nevada · North Las Vegas · Structure no. B 957

Built
1970
55 years old
Condition
Fair
inspected January 2021
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
65,500
2021 count
Owner
State
State Highway Agency

About this bridge

I 15 over Dry Wash is a concrete culvert carrying I 15 over Dry Wash in Clark County, Nevada. It was built in 1970, so it is 55 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 65,500 vehicles a day, roughly 6% of them trucks, projected to reach 113,000 by 2040. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI 15
CrossesDry Wash
LocationNorth Las Vegas
RouteInterstate 15
CountyClark County
StateNevada
Coordinates36.23377, -115.10986
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,500 (2021)
Projected traffic113,000 by 2040
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$422,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 15 over Dry Wash built?

It was built in 1970, making it 55 years old in 2025.

What condition is I 15 over Dry Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2021.

How much traffic does I 15 over Dry Wash carry?

About 65,500 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I 15 over Dry Wash?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns I 15 over Dry Wash?

It is owned by the State Highway Agency.