US Bridges

40B over I-40

Good

Yavapai County, Arizona · 49.1 MI E JCT US 93 · Structure no. 01258

Built
1967
58 years old, rebuilt 2019
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
312 ft
4 main spans
Daily traffic
1,300
2022 count
Owner
State
State Highway Agency

About this bridge

40B over I-40 is a concrete continuous box beam or girders - single or spread carrying 40B over I-40 in Yavapai County, Arizona. It was built in 1967 and reconstructed in 2019, so it is 58 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,300 vehicles a day, roughly 10% of them trucks, projected to reach 1,310 by 2042. The structure is 312 ft (95.1 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries40B
CrossesI-40
Location49.1 MI E JCT US 93
RouteState Highway 40
StateArizona
Coordinates35.3199, -112.8934
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length312 ft (95.1 m)
Longest span100 ft (30.5 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic1,310 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 40B over I-40 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2019.

What condition is 40B over I-40 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does 40B over I-40 carry?

About 1,300 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 40B over I-40?

The structure is 312 ft (95.1 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.

Who owns 40B over I-40?

It is owned by the State Highway Agency.