US Bridges

I-40 WB over Frees Wash

Fair

Mohave County, Arizona · 6.6 MI E JCT SR 66 · Structure no. 00910

Built
1965
60 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
141 ft
5 main spans
Daily traffic
13,078
2021 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over Frees Wash is a concrete continuous slab carrying I-40 WB over Frees Wash in Mohave County, Arizona. It was built in 1965, so it is 60 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 13,078 vehicles a day, roughly 21% of them trucks, projected to reach 13,088 by 2041. The structure is 141 ft (43 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-40 WB
CrossesFrees Wash
Location6.6 MI E JCT SR 66
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.1975, -113.8978
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length141 ft (43 m)
Longest span30 ft (9.1 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,078 (2021)
Projected traffic13,088 by 2041
Trucks21%
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 I-40 WB over Frees Wash built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-40 WB over Frees 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 December 2024.

How much traffic does I-40 WB over Frees Wash carry?

About 13,078 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is I-40 WB over Frees Wash?

The structure is 141 ft (43 m) long with a longest span of 30 ft (9.1 m) and a deck 40 ft wide.

Who owns I-40 WB over Frees Wash?

It is owned by the State Highway Agency.