US Bridges

I-40 WB over 40B

Fair

Yavapai County, Arizona · 1.7 MI W JCT SR 89 · Structure no. 01761

Built
1980
45 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
153 ft
1 main span
Daily traffic
7,410
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over 40B is a prestressed concrete box beam or girders - single or spread carrying I-40 WB over 40B in Yavapai 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 7,410 vehicles a day, roughly 41% of them trucks, projected to reach 7,420 by 2042. 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
Crosses40B
Location1.7 MI W JCT SR 89
RouteInterstate 40
CountyYavapai County
StateArizona
Coordinates35.2205, -112.4971
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating41 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 span151 ft (46 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,410 (2022)
Projected traffic7,420 by 2042
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 40B built?

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

What condition is I-40 WB over 40B 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 40B carry?

About 7,410 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is I-40 WB over 40B?

The structure is 153 ft (46.6 m) long with a longest span of 151 ft (46 m) and a deck 45 ft wide.

Who owns I-40 WB over 40B?

It is owned by the State Highway Agency.