US Bridges

SR 74 over Wash

Fair

Maricopa County, Arizona · 9.5 MI E JCT US 60 · Structure no. 06541

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
50 ft
4 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 1966, so it is 59 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 5,059 vehicles a day, roughly 16% of them trucks, projected to reach 5,069 by 2042. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 60.3 mi (97 km).

Location

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CarriesSR 74
CrossesWash
Location9.5 MI E JCT US 60
RouteState Highway 74
CountyMaricopa County
StateArizona
Coordinates33.83706, -112.47414
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 spans4
Design loadHS 20
Structure length50 ft (15.2 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 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 1966, making it 59 years old in 2025.

What condition is SR 74 over 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 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 50 ft (15.2 m) long with a longest span of 10 ft (3 m).

Who owns SR 74 over Wash?

It is owned by the State Highway Agency.