US Bridges

I 40; EB over Willow Creek

Poor

Mohave County, Arizona · 13.2 MI E JCT US 93 · Structure no. 01768

Built
1976
49 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
576 ft
5 main spans
Daily traffic
8,689
2022 count
Owner
State
State Highway Agency

About this bridge

I 40; EB over Willow Creek is a steel continuous stringer/multi-beam or girder carrying I 40; EB over Willow Creek in Mohave County, Arizona. It was built in 1976, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,689 vehicles a day, roughly 23% of them trucks, projected to reach 8,699 by 2042. The structure is 576 ft (175.6 m) long and 45 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesI 40; EB
CrossesWillow Creek
Location13.2 MI E JCT US 93
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.1787, -113.4729
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length576 ft (175.6 m)
Longest span124 ft (37.8 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,689 (2022)
Projected traffic8,699 by 2042
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 40; EB over Willow Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is I 40; EB over Willow Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

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

About 8,689 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is I 40; EB over Willow Creek?

The structure is 576 ft (175.6 m) long with a longest span of 124 ft (37.8 m) and a deck 45 ft wide.

Who owns I 40; EB over Willow Creek?

It is owned by the State Highway Agency.