US Bridges

US 93 over Wash

Fair

Mohave County, Arizona · 40.0 MI N JCT SR 71 · Structure no. 04976

Built
1950
75 years old, rebuilt 1999
Condition
Fair
inspected November 2022
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
7,094
2017 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 1950 and reconstructed in 1999, so it is 75 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 7,094 vehicles a day, roughly 15% of them trucks, projected to reach 7,104 by 2037. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 67.7 mi (109 km).

CarriesUS 93
CrossesWash
Location40.0 MI N JCT SR 71
RouteU.S. Route 93
StateArizona
Coordinates34.5143, -113.4185
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.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural 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 length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,094 (2017)
Projected traffic7,104 by 2037
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.7 mi (109 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$2,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 93 over Wash built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1999.

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 7,094 vehicles per day (2017 count), of which roughly 15% are trucks.

How long is US 93 over Wash?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns US 93 over Wash?

It is owned by the State Highway Agency.