I 40; EB over Wash

Good

Mohave County, Arizona · 6.5 MI West JCT US 93 · Structure no. 04200

Built: 1949; 76 years old, rebuilt 1974
Condition: Good; inspected April 2022
Type: Culvert; Concrete Continuous
Length: 43 ft; 4 main spans
Daily traffic: 7,163; 2021 count
Owner: State; State Highway Agency

About this bridge

I 40; EB over Wash is a concrete continuous culvert carrying I 40; EB over Wash in Mohave County, Arizona. It was built in 1949 and reconstructed in 1974, so it is 76 years old, older than the Arizona average of 47.8 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 7,163 vehicles a day, roughly 40% of them trucks, projected to reach 7,173 by 2041. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 40; EB

CrossesWash

Location6.5 MI West JCT US 93

RouteInterstate 40

CountyMohave County

StateArizona

Coordinates35.1104, -114.1154

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.

Component	Rating	Meaning
Channel and channel protection	7 Good	Some minor problems.
Culvert	7 Good	Some minor problems.

Last inspectionApril 2022

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating57 US tons

Inventory rating34 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans4

Design loadHS 20

Structure length43 ft (13.1 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,163 (2021)

Projected traffic7,173 by 2041

Trucks40%

Lanes on structure2

Traffic directionOne-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.2 mi (2 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 40; EB over Wash built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1974.

What condition is I 40; EB over 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 April 2022.

How much traffic does I 40; EB over Wash carry?

About 7,163 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is I 40; EB over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns I 40; EB over Wash?

It is owned by the State Highway Agency.