US Bridges

I 15 over Dry Wash

Fair

Clark County, Nevada · 0.6 Miles North of Exit 8 · Structure no. B 434N

Built
1945
80 years old, rebuilt 1982
Condition
Fair
inspected November 2024
Type
Frame
Concrete Continuous
Length
74 ft
2 main spans
Daily traffic
13,500
2021 count
Owner
State
State Highway Agency

About this bridge

I 15 over Dry Wash is a concrete continuous frame carrying I 15 over Dry Wash in Clark County, Nevada. It was built in 1945 and reconstructed in 1982, so it is 80 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 13,500 vehicles a day, roughly 24% of them trucks, projected to reach 23,783 by 2040. The structure is 74 ft (22.6 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 15
CrossesDry Wash
Location0.6 Miles North of Exit 8
RouteInterstate 15
CountyClark County
StateNevada
Coordinates36.55731, -114.68869
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.9 US tons
Inventory rating27 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length74 ft (22.6 m)
Longest span30 ft (9.1 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2021)
Projected traffic23,783 by 2040
Trucks24%
Lanes on structure2
Traffic directionOne-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 I 15 over Dry Wash built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1982.

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 November 2024.

How much traffic does I 15 over Dry Wash carry?

About 13,500 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is I 15 over Dry Wash?

The structure is 74 ft (22.6 m) long with a longest span of 30 ft (9.1 m) and a deck 45 ft wide.

Who owns I 15 over Dry Wash?

It is owned by the State Highway Agency.