US Bridges

I 40 Nfr & Sfr over Wash

Good

Navajo County, Arizona · 6.1 MI E JCT SR 99 · Structure no. 06717

Built
1974
51 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
53 ft
5 main spans
Daily traffic
24,335
2021 count
Owner
State
State Highway Agency

About this bridge

I 40 Nfr & Sfr over Wash is a concrete continuous culvert carrying I 40 Nfr & Sfr over Wash in Navajo County, Arizona. It was built in 1974, so it is 51 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 24,335 vehicles a day, roughly 43% of them trucks, projected to reach 24,345 by 2041. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI 40 Nfr & Sfr
CrossesWash
Location6.1 MI E JCT SR 99
RouteInterstate 40
CountyNavajo County
StateArizona
Coordinates35.03879, -110.7342
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 adequacy8: Equal to present desirable 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 spans5
Design loadHS 20
Structure length53 ft (16.2 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 traffic24,335 (2021)
Projected traffic24,345 by 2041
Trucks43%
Lanes on structure8
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$3,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 40 Nfr & Sfr over Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is I 40 Nfr & Sfr 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 Nfr & Sfr over Wash carry?

About 24,335 vehicles per day (2021 count), of which roughly 43% are trucks.

How long is I 40 Nfr & Sfr over Wash?

The structure is 53 ft (16.2 m) long with a longest span of 10 ft (3 m).

Who owns I 40 Nfr & Sfr over Wash?

It is owned by the State Highway Agency.