US Bridges

I 40; EB over Wash

Good

Mohave County, Arizona · 6.1 MI South JCT US 93 · Structure no. 04202

Built
1949
76 years old, rebuilt 1974
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 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 28% of them trucks, projected to reach 7,173 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 40; EB
CrossesWash
Location6.1 MI South JCT US 93
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.1121, -114.1149
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 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 rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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
Trucks28%
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 28% are trucks.

How long is I 40; EB over Wash?

The structure is 21 ft (6.4 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.