US Bridges

I 10; EB over Wash

Good

La Paz County, Arizona · 14.8 MI W JCT SR 95 · Structure no. 05363

Built
1949
76 years old, rebuilt 1963
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
98 ft
9 main spans
Daily traffic
13,510
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Wash is a concrete continuous culvert carrying I 10; EB over Wash in La Paz County, Arizona. It was built in 1949 and reconstructed in 1963, 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 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 13,510 vehicles a day, roughly 44% of them trucks, projected to reach 13,520 by 2042. The structure is 98 ft (29.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10; EB
CrossesWash
Location14.8 MI W JCT SR 95
RouteInterstate 10
StateArizona
Coordinates33.6163, -114.4623
Functional classRural 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 inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans9
Design loadHS 20
Structure length98 ft (29.9 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 traffic13,510 (2022)
Projected traffic13,520 by 2042
Trucks44%
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; EB over Wash built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1963.

What condition is I 10; EB 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 January 2024.

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

About 13,510 vehicles per day (2022 count), of which roughly 44% are trucks.

How long is I 10; EB over Wash?

The structure is 98 ft (29.9 m) long with a longest span of 10 ft (3 m).

Who owns I 10; EB over Wash?

It is owned by the State Highway Agency.