US Bridges

I 10; EB & WB over Wash

Fair

La Paz County, Arizona · 16.1 MI W JCT SR 95 · Structure no. 05361

Built
1949
76 years old, rebuilt 1979
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
27,198
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB & WB over Wash is a concrete continuous culvert carrying I 10; EB & WB over Wash in La Paz County, Arizona. It was built in 1949 and reconstructed in 1979, so it is 76 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 27,198 vehicles a day, roughly 44% of them trucks, projected to reach 27,208 by 2042. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 75.2 mi (121 km).

Location

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CarriesI 10; EB & WB
CrossesWash
Location16.1 MI W JCT SR 95
RouteInterstate 10
CountyLa Paz County
StateArizona
Coordinates33.6101, -114.4835
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 inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating79 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 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 traffic27,198 (2022)
Projected traffic27,208 by 2042
Trucks44%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 10; EB & WB over Wash built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1979.

What condition is I 10; EB & 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 January 2024.

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

About 27,198 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is I 10; EB & WB over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns I 10; EB & WB over Wash?

It is owned by the State Highway Agency.