US Bridges

SR 71 over Wash

Good

Maricopa County, Arizona · 0.8 MI N JCT US 60 · Structure no. 06128

Built
1949
76 years old, rebuilt 2001
Condition
Good
inspected May 2023
Type
Culvert
Steel
Length
40 ft
4 main spans
Daily traffic
730
2021 count
Owner
State
State Highway Agency

About this bridge

SR 71 over Wash is a steel culvert carrying SR 71 over Wash in Maricopa County, Arizona. It was built in 1949 and reconstructed in 2001, so it is 76 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 8 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 40 ft (12.2 m) long. If it were closed, the detour would be 60.3 mi (97 km).

CarriesSR 71
CrossesWash
Location0.8 MI N JCT US 60
RouteState Highway 71
StateArizona
Coordinates33.9513, -113.1416
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.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 1949, making it 76 years old in 2025. It was reconstructed in 2001.

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 40 ft (12.2 m) long with a longest span of 7 ft (2.1 m).

Who owns SR 71 over Wash?

It is owned by the State Highway Agency.