US Bridges

US 93 over Moss Wash

Good

Mohave County, Arizona · 12.6 MI S JCT I-40 · Structure no. 02931

Built
2014
11 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
220 ft
2 main spans
Daily traffic
5,214
2022 count
Owner
State
State Highway Agency

About this bridge

US 93 over Moss Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying US 93 over Moss Wash in Mohave County, Arizona. It was built in 2014, so it is 11 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 5,214 vehicles a day, roughly 24% of them trucks, projected to reach 5,224 by 2042. The structure is 220 ft (67.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 93
CrossesMoss Wash
Location12.6 MI S JCT I-40
RouteU.S. Route 93
CountyMohave County
StateArizona
Coordinates34.9918, -113.6659
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length220 ft (67.1 m)
Longest span107 ft (32.7 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,214 (2022)
Projected traffic5,224 by 2042
Trucks24%
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 over Moss Wash built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 93 over Moss 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 December 2024.

How much traffic does US 93 over Moss Wash carry?

About 5,214 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is US 93 over Moss Wash?

The structure is 220 ft (67.1 m) long with a longest span of 107 ft (32.7 m) and a deck 45 ft wide.

Who owns US 93 over Moss Wash?

It is owned by the State Highway Agency.