US Bridges

Business 40 over ST Joseph Wash

Good

Navajo County, Arizona · 0.82 MI E JCT I-40 · Structure no. 02428

Built
1996
29 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
110 ft
5 main spans
Daily traffic
686
2021 count
Owner
State
State Highway Agency

About this bridge

Business 40 over ST Joseph Wash is a concrete continuous slab carrying Business 40 over ST Joseph Wash in Navajo County, Arizona. It was built in 1996, so it is 29 years old, younger 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 686 vehicles a day, roughly 15% of them trucks, projected to reach 696 by 2041. The structure is 110 ft (33.5 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBusiness 40
CrossesST Joseph Wash
Location0.82 MI E JCT I-40
RouteState Highway 40
StateArizona
Coordinates34.9563, -110.3412
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span22 ft (6.7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic686 (2021)
Projected traffic696 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Business 40 over ST Joseph Wash built?

It was built in 1996, making it 29 years old in 2025.

What condition is Business 40 over ST Joseph Wash 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 2023.

How much traffic does Business 40 over ST Joseph Wash carry?

About 686 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Business 40 over ST Joseph Wash?

The structure is 110 ft (33.5 m) long with a longest span of 22 ft (6.7 m) and a deck 47 ft wide.

Who owns Business 40 over ST Joseph Wash?

It is owned by the State Highway Agency.