US Bridges

I-40 WB over White Cliff RD

Fair

Mohave County, Arizona · 3.5 MI W JCT SR 66 · Structure no. 01840

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
153 ft
1 main span
Daily traffic
21,325
2021 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over White Cliff RD is a prestressed concrete box beam or girders - single or spread carrying I-40 WB over White Cliff RD in Mohave County, Arizona. It was built in 1980, so it is 45 years old, younger 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 21,325 vehicles a day, roughly 28% of them trucks, projected to reach 21,335 by 2041. The structure is 153 ft (46.6 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-40 WB
CrossesWhite Cliff RD
Location3.5 MI W JCT SR 66
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.2077, -114.0599
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span150 ft (45.7 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,325 (2021)
Projected traffic21,335 by 2041
Trucks28%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesHighway
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 White Cliff RD built?

It was built in 1980, making it 45 years old in 2025.

What condition is I-40 WB over White Cliff RD 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 White Cliff RD carry?

About 21,325 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I-40 WB over White Cliff RD?

The structure is 153 ft (46.6 m) long with a longest span of 150 ft (45.7 m) and a deck 45 ft wide.

Who owns I-40 WB over White Cliff RD?

It is owned by the State Highway Agency.