US Bridges

I 10; EB & WB over Wash

Good

La Paz County, Arizona · 1.9 MI E JCT US 95 · Structure no. 05405

Built
1960
65 years old, rebuilt 1980
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
60 ft
4 main spans
Daily traffic
25,358
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 1960 and reconstructed in 1980, so it is 65 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 25,358 vehicles a day, roughly 47% of them trucks, projected to reach 25,368 by 2042. The structure is 60 ft (18.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesI 10; EB & WB
CrossesWash
Location1.9 MI E JCT US 95
RouteInterstate 10
StateArizona
Coordinates33.66739, -114.18334
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 inspectionMarch 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 rating99 US tons
Inventory rating79 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length60 ft (18.3 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 traffic25,358 (2022)
Projected traffic25,368 by 2042
Trucks47%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1980.

What condition is I 10; EB & WB 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 March 2024.

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

About 25,358 vehicles per day (2022 count), of which roughly 47% are trucks.

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

The structure is 60 ft (18.3 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.