US Bridges

I 10; EB & WB over Wash

Fair

Maricopa County, Arizona · 3.7 MI S of JCT US 60 · Structure no. 05420

Built
1965
60 years old, rebuilt 1985
Condition
Fair
inspected March 2021
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
206,711
2019 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 Maricopa County, Arizona. It was built in 1965 and reconstructed in 1985, so it is 60 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 206,711 vehicles a day, roughly 8% of them trucks, projected to reach 206,721 by 2039. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI 10; EB & WB
CrossesWash
Location3.7 MI S of JCT US 60
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.3347, -111.9732
Functional classUrban 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 inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 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 traffic206,711 (2019)
Projected traffic206,721 by 2039
Trucks8%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1985.

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 March 2021.

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

About 206,711 vehicles per day (2019 count), of which roughly 8% are trucks.

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

The structure is 32 ft (9.8 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.