US Bridges

Krkld-Skull Vly RD over Copper Basin Wash

Fair

Yavapai County, Arizona · 1.5 MI N JCT Kirkland RD · Structure no. 09110

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
164 ft
5 main spans
Daily traffic
2,204
2021 count
Owner
County
County Highway Agency

About this bridge

Krkld-Skull Vly RD over Copper Basin Wash is a concrete continuous slab carrying Krkld-Skull Vly RD over Copper Basin Wash in Yavapai County, Arizona. It was built in 1956, so it is 69 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,204 vehicles a day, roughly 5% of them trucks, projected to reach 2,214 by 2041. The structure is 164 ft (50 m) long and 28 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

Location

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CarriesKrkld-Skull Vly RD
CrossesCopper Basin Wash
Location1.5 MI N JCT Kirkland RD
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.4319, -112.6931
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length164 ft (50 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,204 (2021)
Projected traffic2,214 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Krkld-Skull Vly RD over Copper Basin Wash built?

It was built in 1956, making it 69 years old in 2025.

What condition is Krkld-Skull Vly RD over Copper Basin Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Krkld-Skull Vly RD over Copper Basin Wash carry?

About 2,204 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Krkld-Skull Vly RD over Copper Basin Wash?

The structure is 164 ft (50 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns Krkld-Skull Vly RD over Copper Basin Wash?

It is owned by the County Highway Agency.