US Bridges

SR 79 over Wash

Good

Pinal County, Arizona · 0.8 MI N JCT SR 287 · Structure no. 04772

Built
1959
66 years old, rebuilt 2003
Condition
Good
inspected February 2022
Type
Culvert
Concrete Continuous
Length
54 ft
5 main spans
Daily traffic
2,954
2021 count
Owner
State
State Highway Agency

About this bridge

SR 79 over Wash is a concrete continuous culvert carrying SR 79 over Wash in Pinal County, Arizona. It was built in 1959 and reconstructed in 2003, so it is 66 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 2,954 vehicles a day, roughly 10% of them trucks, projected to reach 2,964 by 2041. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSR 79
CrossesWash
Location0.8 MI N JCT SR 287
RouteState Highway 79
StateArizona
Coordinates33.0419, -111.3792
Functional classUrban Other Principal Arterial

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 2022
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 rating72 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length54 ft (16.5 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 traffic2,954 (2021)
Projected traffic2,964 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemYes

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 SR 79 over Wash built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2003.

What condition is SR 79 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 2022.

How much traffic does SR 79 over Wash carry?

About 2,954 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 79 over Wash?

The structure is 54 ft (16.5 m) long with a longest span of 10 ft (3 m).

Who owns SR 79 over Wash?

It is owned by the State Highway Agency.