US Bridges

I 10; EB over Wash

Good

Maricopa County, Arizona · 25.3 MI W JCT SR 85 · Structure no. 06442

Built
1970
55 years old
Condition
Good
inspected June 2021
Type
Culvert
Concrete Continuous
Length
64 ft
6 main spans
Daily traffic
11,500
2014 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 Maricopa County, Arizona. It was built in 1970, so it is 55 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 11,500 vehicles a day, roughly 39% of them trucks, projected to reach 11,510 by 2034. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 10; EB
CrossesWash
Location25.3 MI W JCT SR 85
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.50736, -112.9933
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 inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable 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 spans6
Design loadHS 20
Structure length64 ft (19.5 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 traffic11,500 (2014)
Projected traffic11,510 by 2034
Trucks39%
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 1970, making it 55 years old in 2025.

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 June 2021.

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

About 11,500 vehicles per day (2014 count), of which roughly 39% are trucks.

How long is I 10; EB over Wash?

The structure is 64 ft (19.5 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.