US Bridges

Suncliffe DR over Unamed Wash

Good

Yavapai County, Arizona · 0.4 MI N of Jacks Cyn RD · Structure no. 10709

Built
1990
35 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
535
2021 count
Owner
County
County Highway Agency

About this bridge

Suncliffe DR over Unamed Wash is a concrete continuous culvert carrying Suncliffe DR over Unamed Wash in Yavapai County, Arizona. It was built in 1990, so it is 35 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 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 535 vehicles a day, roughly 1% of them trucks, projected to reach 545 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSuncliffe DR
CrossesUnamed Wash
Location0.4 MI N of Jacks Cyn RD
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.78406, -111.75725
Functional classUrban Local

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 inspectionAugust 2023
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 alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 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 traffic535 (2021)
Projected traffic545 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Suncliffe DR over Unamed Wash built?

It was built in 1990, making it 35 years old in 2025.

What condition is Suncliffe DR over Unamed 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 August 2023.

How much traffic does Suncliffe DR over Unamed Wash carry?

About 535 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Suncliffe DR over Unamed Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Suncliffe DR over Unamed Wash?

It is owned by the County Highway Agency.