US Bridges

I 40; WB over Willow Creek

Fair

Mohave County, Arizona · 16.7 MI East JCT SR 95 · Structure no. 00380

Built
1952
73 years old, rebuilt 1989
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
221 ft
4 main spans
Daily traffic
8,548
2022 count
Owner
State
State Highway Agency

About this bridge

I 40; WB over Willow Creek is a steel continuous stringer/multi-beam or girder carrying I 40; WB over Willow Creek in Mohave County, Arizona. It was built in 1952 and reconstructed in 1989, so it is 73 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 5 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 8,548 vehicles a day, roughly 40% of them trucks, projected to reach 13,224 by 2042. The structure is 221 ft (67.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 40; WB
CrossesWillow Creek
Location16.7 MI East JCT SR 95
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates34.883, -114.1489
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length221 ft (67.4 m)
Longest span60 ft (18.3 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,548 (2022)
Projected traffic13,224 by 2042
Trucks40%
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 Willow Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1989.

What condition is I 40; WB over Willow Creek 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 July 2024.

How much traffic does I 40; WB over Willow Creek carry?

About 8,548 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is I 40; WB over Willow Creek?

The structure is 221 ft (67.4 m) long with a longest span of 60 ft (18.3 m) and a deck 45 ft wide.

Who owns I 40; WB over Willow Creek?

It is owned by the State Highway Agency.