US Bridges

Sun Valley PKWY-74 over Wash

Good

Maricopa County, Arizona · 19.6 MI N/ Mcdowell RD · Structure no. 07693

Built
1989
36 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
79 ft
6 main spans
Daily traffic
9,729
2020 count
Owner
County
County Highway Agency

About this bridge

Sun Valley PKWY-74 over Wash is a concrete continuous culvert carrying Sun Valley PKWY-74 over Wash in Maricopa County, Arizona. It was built in 1989, so it is 36 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 9,729 vehicles a day, roughly 10% of them trucks, projected to reach 9,739 by 2040. The structure is 79 ft (24.1 m) long. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesSun Valley PKWY-74
CrossesWash
Location19.6 MI N/ Mcdowell RD
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.66059, -112.57485
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 inspectionJanuary 2024
Inspection intervalevery 36 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 alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,729 (2020)
Projected traffic9,739 by 2040
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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 Sun Valley PKWY-74 over Wash built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sun Valley PKWY-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 January 2024.

How much traffic does Sun Valley PKWY-74 over Wash carry?

About 9,729 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Sun Valley PKWY-74 over Wash?

The structure is 79 ft (24.1 m) long with a longest span of 13 ft (4 m).

Who owns Sun Valley PKWY-74 over Wash?

It is owned by the County Highway Agency.