US Bridges

I 10; EB & WB over Wash

Good

Pima County, Arizona · 22.7 MI North JCT I 19 · Structure no. 05534

Built
1951
74 years old, rebuilt 1979
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
64 ft
6 main spans
Daily traffic
63,197
2024 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 Pima County, Arizona. It was built in 1951 and reconstructed in 1979, so it is 74 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 63,197 vehicles a day, roughly 14% of them trucks, projected to reach 63,207 by 2042. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesI 10; EB & WB
CrossesWash
Location22.7 MI North JCT I 19
RouteInterstate 10
StateArizona
Coordinates32.4543, -111.2049
Functional classUrban 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 inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 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 traffic63,197 (2024)
Projected traffic63,207 by 2042
Trucks14%
Lanes on structure6
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1951, making it 74 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 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 September 2024.

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

About 63,197 vehicles per day (2024 count), of which roughly 14% are trucks.

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

It is owned by the State Highway Agency.