US Bridges

SR 74 over Wash

Good

Maricopa County, Arizona · 13.0 MI E JCT US 60 · Structure no. 06546

Built
1971
54 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
5,059
2023 count
Owner
State
State Highway Agency

About this bridge

SR 74 over Wash is a concrete continuous culvert carrying SR 74 over Wash in Maricopa County, Arizona. It was built in 1971, so it is 54 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 5,059 vehicles a day, roughly 16% of them trucks, projected to reach 5,069 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesSR 74
CrossesWash
Location13.0 MI E JCT US 60
RouteState Highway 74
CountyMaricopa County
StateArizona
Coordinates33.82639, -112.41514
Functional classRural Principal Arterial - Other

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
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
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,059 (2023)
Projected traffic5,069 by 2042
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 74 over Wash built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 74 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 74 over Wash carry?

About 5,059 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is SR 74 over Wash?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 74 over Wash?

It is owned by the State Highway Agency.