US Bridges

I-40 WB over BNSF Railroad @ Ash Fork

Fair

Yavapai County, Arizona · 2.1 MI W JCT SR 89 · Structure no. 00440

Built
1955
70 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
7,553
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over BNSF Railroad @ Ash Fork is a concrete continuous slab carrying I-40 WB over BNSF Railroad @ Ash Fork in Yavapai County, Arizona. It was built in 1955, so it is 70 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 7,553 vehicles a day, roughly 43% of them trucks, projected to reach 7,563 by 2042. The structure is 102 ft (31.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-40 WB
CrossesBNSF Railroad @ Ash Fork
Location2.1 MI W JCT SR 89
RouteInterstate 40
StateArizona
Coordinates35.2211, -112.5082
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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span36 ft (11 m)
Deck width43 ft (13 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,553 (2022)
Projected traffic7,563 by 2042
Trucks43%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 WB over BNSF Railroad @ Ash Fork built?

It was built in 1955, making it 70 years old in 2025.

What condition is I-40 WB over BNSF Railroad @ Ash Fork 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 June 2024.

How much traffic does I-40 WB over BNSF Railroad @ Ash Fork carry?

About 7,553 vehicles per day (2022 count), of which roughly 43% are trucks.

How long is I-40 WB over BNSF Railroad @ Ash Fork?

The structure is 102 ft (31.1 m) long with a longest span of 36 ft (11 m) and a deck 43 ft wide.

Who owns I-40 WB over BNSF Railroad @ Ash Fork?

It is owned by the State Highway Agency.