US Bridges

I15 over Dry Wash

Good

Clark County, Nevada · North of Speedway · Structure no. B1043

Built
1963
62 years old, rebuilt 2024
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
26,500
2022 count
Owner
State
State Highway Agency

About this bridge

I15 over Dry Wash is a concrete culvert carrying I15 over Dry Wash in Clark County, Nevada. It was built in 1963 and reconstructed in 2024, so it is 62 years old, older 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 26,500 vehicles a day, roughly 30% of them trucks, projected to reach 29,150 by 2042. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI15
CrossesDry Wash
LocationNorth of Speedway
RouteInterstate 15
CountyClark County
StateNevada
Coordinates36.2879, -115.01215
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating30.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,500 (2022)
Projected traffic29,150 by 2042
Trucks30%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I15 over Dry Wash built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2024.

What condition is I15 over Dry Wash 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 March 2024.

How much traffic does I15 over Dry Wash carry?

About 26,500 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is I15 over Dry Wash?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns I15 over Dry Wash?

It is owned by the State Highway Agency.