US Bridges

US 93 NB over Wash

Good

Mohave County, Arizona · 38.1 MI NW of JCT SR 68 · Structure no. 06811

Built
1982
43 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
53 ft
5 main spans
Daily traffic
8,908
2022 count
Owner
State
State Highway Agency

About this bridge

US 93 NB over Wash is a concrete continuous culvert carrying US 93 NB over Wash in Mohave County, Arizona. It was built in 1982, so it is 43 years old, younger 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 8,908 vehicles a day, roughly 28% of them trucks, projected to reach 8,918 by 2042. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 93 NB
CrossesWash
Location38.1 MI NW of JCT SR 68
RouteU.S. Route 93
StateArizona
Coordinates35.7009, -114.4749
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 inspectionOctober 2024
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 rating83 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length53 ft (16.2 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 traffic8,908 (2022)
Projected traffic8,918 by 2042
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 US 93 NB over Wash built?

It was built in 1982, making it 43 years old in 2025.

What condition is US 93 NB 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 October 2024.

How much traffic does US 93 NB over Wash carry?

About 8,908 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 93 NB over Wash?

The structure is 53 ft (16.2 m) long with a longest span of 10 ft (3 m).

Who owns US 93 NB over Wash?

It is owned by the State Highway Agency.