US Bridges

Skyline Road over Un-Named Wash

Good

Pinal County, Arizona · 7.8 MI N JCT Az Farms RD · Structure no. 09610

Built
1964
61 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
3,415
2022 count
Owner
County
County Highway Agency

About this bridge

Skyline Road over Un-Named Wash is a concrete continuous culvert carrying Skyline Road over Un-Named Wash in Pinal County, Arizona. It was built in 1964, so it is 61 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 3,415 vehicles a day, roughly 7% of them trucks, projected to reach 3,425 by 2042. The structure is 24 ft (7.3 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSkyline Road
CrossesUn-Named Wash
Location7.8 MI N JCT Az Farms RD
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates33.19106, -111.52308
Functional classUrban Collector

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 inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,415 (2022)
Projected traffic3,425 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Skyline Road over Un-Named Wash built?

It was built in 1964, making it 61 years old in 2025.

What condition is Skyline Road over Un-Named 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 October 2023.

How much traffic does Skyline Road over Un-Named Wash carry?

About 3,415 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Skyline Road over Un-Named Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns Skyline Road over Un-Named Wash?

It is owned by the County Highway Agency.