US Bridges

SR79 over Coronado Wash

Good

Pinal County, Arizona · 10.8 MI North JCT SR 77 · Structure no. 20033

Built
2015
10 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
232 ft
6 main spans
Daily traffic
34
2022 count
Owner
State
State Highway Agency

About this bridge

SR79 over Coronado Wash is a concrete continuous slab carrying SR79 over Coronado Wash in Pinal County, Arizona. It was built in 2015, so it is 10 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 34 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2042. The structure is 232 ft (70.8 m) long and 49 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesSR79
CrossesCoronado Wash
Location10.8 MI North JCT SR 77
RouteState Highway 79
CountyPinal County
StateArizona
Coordinates32.66876, -111.05697
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating96 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length232 ft (70.8 m)
Longest span41 ft (12.5 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)
Projected traffic44 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

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 SR79 over Coronado Wash built?

It was built in 2015, making it 10 years old in 2025.

What condition is SR79 over Coronado 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 2024.

How much traffic does SR79 over Coronado Wash carry?

About 34 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR79 over Coronado Wash?

The structure is 232 ft (70.8 m) long with a longest span of 41 ft (12.5 m) and a deck 49 ft wide.

Who owns SR79 over Coronado Wash?

It is owned by the State Highway Agency.