US Bridges

I 10; WB over Wash

Fair

Cochise County, Arizona · 4.4 MI W JCT SR 90 · Structure no. 05571

Built
1931
94 years old, rebuilt 1965
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
14,809
2023 count
Owner
State
State Highway Agency

About this bridge

I 10; WB over Wash is a concrete continuous culvert carrying I 10; WB over Wash in Cochise County, Arizona. It was built in 1931 and reconstructed in 1965, so it is 94 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 14,809 vehicles a day, roughly 22% of them trucks, projected to reach 14,919 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; WB
CrossesWash
Location4.4 MI W JCT SR 90
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates31.96315, -110.41961
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 rating80 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic14,809 (2023)
Projected traffic14,919 by 2042
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 10; WB over Wash built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1965.

What condition is I 10; WB over 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 February 2024.

How much traffic does I 10; WB over Wash carry?

About 14,809 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I 10; WB over Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I 10; WB over Wash?

It is owned by the State Highway Agency.