US Bridges

I 40; EB & WB over Wash

Good

Navajo County, Arizona · 2.4 MI W JCT SR 87 · Structure no. 06693

Built
1979
46 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
42 ft
4 main spans
Daily traffic
23,602
2021 count
Owner
State
State Highway Agency

About this bridge

I 40; EB & WB over Wash is a concrete continuous culvert carrying I 40; EB & WB over Wash in Navajo County, Arizona. It was built in 1979, so it is 46 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 23,602 vehicles a day, roughly 45% of them trucks, projected to reach 23,612 by 2041. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI 40; EB & WB
CrossesWash
Location2.4 MI W JCT SR 87
RouteInterstate 40
CountyNavajo County
StateArizona
Coordinates35.0205, -110.67867
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,602 (2021)
Projected traffic23,612 by 2041
Trucks45%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 40; EB & WB over Wash built?

It was built in 1979, making it 46 years old in 2025.

What condition is I 40; EB & WB over 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 April 2023.

How much traffic does I 40; EB & WB over Wash carry?

About 23,602 vehicles per day (2021 count), of which roughly 45% are trucks.

How long is I 40; EB & WB over Wash?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m).

Who owns I 40; EB & WB over Wash?

It is owned by the State Highway Agency.