US Bridges

I 40; WB over Willow Creek

Fair

Mohave County, Arizona · 13.8 MI E JCT SR 93 · Structure no. 01769

Built
1976
49 years old, rebuilt 2010
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
282 ft
3 main spans
Daily traffic
6,773
2023 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 1976 and reconstructed in 2010, so it is 49 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 6,773 vehicles a day, roughly 26% of them trucks, projected to reach 6,783 by 2042. The structure is 282 ft (86 m) long and 45 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesI 40; WB
CrossesWillow Creek
Location13.8 MI E JCT SR 93
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.1844, -113.4623
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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length282 ft (86 m)
Longest span114 ft (34.7 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,773 (2023)
Projected traffic6,783 by 2042
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1976, making it 49 years old in 2025. It was reconstructed in 2010.

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 August 2024.

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

About 6,773 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I 40; WB over Willow Creek?

The structure is 282 ft (86 m) long with a longest span of 114 ft (34.7 m) and a deck 45 ft wide.

Who owns I 40; WB over Willow Creek?

It is owned by the State Highway Agency.