US Bridges

US 93 over Wash

Good

Mohave County, Arizona · 20.2 MI South JCT I 40 · Structure no. 04958

Built
1954
71 years old, rebuilt 2010
Condition
Good
inspected April 2021
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
9,582
2019 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 1954 and reconstructed in 2010, so it is 71 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 9,582 vehicles a day, roughly 19% of them trucks, projected to reach 9,592 by 2039. The structure is 32 ft (9.8 m) long and 211 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 93
CrossesWash
Location20.2 MI South JCT I 40
RouteU.S. Route 93
CountyMohave County
StateArizona
Coordinates34.8829, -113.649
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width211 ft (64.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,582 (2019)
Projected traffic9,592 by 2039
Trucks19%
Lanes on structure4
Traffic directionTwo-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 93 over Wash built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2010.

What condition is US 93 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 2021.

How much traffic does US 93 over Wash carry?

About 9,582 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is US 93 over Wash?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 211 ft wide.

Who owns US 93 over Wash?

It is owned by the State Highway Agency.