US Bridges

IRR I 10; EB & WB over Wash

Good

Pinal County, Arizona · 0.8 MI South JCT SR 387 · Structure no. 05442

Built
1967
58 years old, rebuilt 1975
Condition
Good
inspected February 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
48,004
2021 count
Owner
State
State Highway Agency

About this bridge

IRR I 10; EB & WB over Wash is a concrete continuous culvert carrying IRR I 10; EB & WB over Wash in Pinal County, Arizona. It was built in 1967 and reconstructed in 1975, so it is 58 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 48,004 vehicles a day, roughly 15% of them trucks, projected to reach 48,014 by 2041. The structure is 21 ft (6.4 m) long and 192 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR I 10; EB & WB
CrossesWash
Location0.8 MI South JCT SR 387
RouteInterstate 10
StateArizona
Coordinates32.99333, -111.745
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 inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width192 ft (58.5 m)
Roadway width190 ft (57.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,004 (2021)
Projected traffic48,014 by 2041
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 IRR I 10; EB & WB over Wash built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1975.

What condition is IRR 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 February 2023.

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

About 48,004 vehicles per day (2021 count), of which roughly 15% are trucks.

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

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 192 ft wide.

Who owns IRR I 10; EB & WB over Wash?

It is owned by the State Highway Agency.