US 93 over Wash

Fair

Mohave County, Arizona · 17.2 MI N JCT SR 68 · Structure no. 04921

Built: 1937; 88 years old, rebuilt 1993
Condition: Fair; inspected November 2022
Type: Culvert; Concrete Continuous
Length: 24 ft; 2 main spans
Daily traffic: 15,661; 2021 count
Owner: State; State Highway Agency

About this bridge

US 93 over Wash is a concrete continuous culvert carrying US 93 over Wash in Mohave County, Arizona. It was built in 1937 and reconstructed in 1993, so it is 88 years old, older than the Arizona average of 47.8 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 15,661 vehicles a day, roughly 7% of them trucks, projected to reach 15,671 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesUS 93

CrossesWash

Location17.2 MI N JCT SR 68

RouteU.S. Route 93

CountyMohave County

StateArizona

Coordinates35.4317, -114.2846

Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionNovember 2022

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 rating99 US tons

Inventory rating99 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadHS 20

Structure length24 ft (7.3 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 traffic15,661 (2021)

Projected traffic15,671 by 2041

Trucks7%

Lanes on structure4

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed29.8 mi (48 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—

NavigationNo navigation control on waterway

Frequently asked questions

When was US 93 over Wash built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1993.

What condition is US 93 over 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 2022.

How much traffic does US 93 over Wash carry?

About 15,661 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is US 93 over Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns US 93 over Wash?

It is owned by the State Highway Agency.