US Bridges

Business 40 over I-40

Fair

Navajo County, Arizona · 17.0 MI E JCT SR 87 · Structure no. 01893

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
257 ft
2 main spans
Daily traffic
760
2021 count
Owner
State
State Highway Agency

About this bridge

Business 40 over I-40 is a prestressed concrete continuous box beam or girders - single or spread carrying Business 40 over I-40 in Navajo 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 760 vehicles a day, roughly 21% of them trucks, projected to reach 770 by 2041. The structure is 257 ft (78.3 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBusiness 40
CrossesI-40
Location17.0 MI E JCT SR 87
RouteState Highway 40
CountyNavajo County
StateArizona
Coordinates34.9558, -110.3514
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating47 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span127 ft (38.7 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2021)
Projected traffic770 by 2041
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Business 40 over I-40 built?

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

What condition is Business 40 over I-40 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 May 2023.

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

About 760 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is Business 40 over I-40?

The structure is 257 ft (78.3 m) long with a longest span of 127 ft (38.7 m) and a deck 41 ft wide.

Who owns Business 40 over I-40?

It is owned by the State Highway Agency.