US Bridges

I 40; EB & WB over Dog Town Wash

Fair

Coconino County, Arizona · 1.31 MI E JCT SR 64 · Structure no. 05902

Built
1943
82 years old, rebuilt 1978
Condition
Fair
inspected August 2022
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
22,854
2021 count
Owner
State
State Highway Agency

About this bridge

I 40; EB & WB over Dog Town Wash is a concrete continuous culvert carrying I 40; EB & WB over Dog Town Wash in Coconino County, Arizona. It was built in 1943 and reconstructed in 1978, so it is 82 years old, older 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 22,854 vehicles a day, roughly 34% of them trucks, projected to reach 22,864 by 2041. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesI 40; EB & WB
CrossesDog Town Wash
Location1.31 MI E JCT SR 64
RouteInterstate 40
CountyCoconino County
StateArizona
Coordinates35.2582, -112.1291
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic22,854 (2021)
Projected traffic22,864 by 2041
Trucks34%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$1,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1943, making it 82 years old in 2025. It was reconstructed in 1978.

What condition is I 40; EB & WB over Dog Town Wash 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 August 2022.

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

About 22,854 vehicles per day (2021 count), of which roughly 34% are trucks.

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

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns I 40; EB & WB over Dog Town Wash?

It is owned by the State Highway Agency.