US Bridges

SR 71 over Wash

Good

Yavapai County, Arizona · 5.7 MI SW JCT US 93 · Structure no. 04339

Built
1939
86 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
730
2021 count
Owner
State
State Highway Agency

About this bridge

SR 71 over Wash is a concrete continuous culvert carrying SR 71 over Wash in Yavapai County, Arizona. It was built in 1939, so it is 86 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 730 vehicles a day, roughly 16% of them trucks, projected to reach 740 by 2041. The structure is 43 ft (13.1 m) long and 29 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

CarriesSR 71
CrossesWash
Location5.7 MI SW JCT US 93
RouteState Highway 71
StateArizona
Coordinates34.0743, -113.0284
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 adequacy7: Better than present minimum 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 spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2021)
Projected traffic740 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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 SR 71 over Wash built?

It was built in 1939, making it 86 years old in 2025.

What condition is SR 71 over 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 May 2023.

How much traffic does SR 71 over Wash carry?

About 730 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is SR 71 over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns SR 71 over Wash?

It is owned by the State Highway Agency.