US Bridges

Skull Valley Road over Gardner Wash

Good

Yavapai County, Arizona · 8.3 MI N JCT Kirkland RD · Structure no. 09452

Built
1958
67 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
1,180
2021 count
Owner
County
County Highway Agency

About this bridge

Skull Valley Road over Gardner Wash is a concrete continuous culvert carrying Skull Valley Road over Gardner Wash in Yavapai County, Arizona. It was built in 1958, so it is 67 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 1,180 vehicles a day, roughly 5% of them trucks, projected to reach 1,190 by 2041. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSkull Valley Road
CrossesGardner Wash
Location8.3 MI N JCT Kirkland RD
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.52161, -112.69083
Functional classRural Major 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 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 traffic1,180 (2021)
Projected traffic1,190 by 2041
Trucks5%
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 Skull Valley Road over Gardner Wash built?

It was built in 1958, making it 67 years old in 2025.

What condition is Skull Valley Road over Gardner 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 2023.

How much traffic does Skull Valley Road over Gardner Wash carry?

About 1,180 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Skull Valley Road over Gardner Wash?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns Skull Valley Road over Gardner Wash?

It is owned by the County Highway Agency.