US Bridges

Happy Valley Road over Dry Wash

Good

Maricopa County, Arizona · At 23rd Ave Intersection · Structure no. 11652

Built
2002
23 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
21,160
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Happy Valley Road over Dry Wash is a concrete continuous culvert carrying Happy Valley Road over Dry Wash in Maricopa County, Arizona. It was built in 2002, so it is 23 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 21,160 vehicles a day, roughly 1% of them trucks, projected to reach 21,170 by 2039. The structure is 23 ft (7 m) long and 112 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesHappy Valley Road
CrossesDry Wash
LocationAt 23rd Ave Intersection
RouteCity Street 0
StateArizona
Coordinates33.7129, -112.1088
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width112 ft (34.1 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,160 (2019)
Projected traffic21,170 by 2039
Trucks1%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Happy Valley Road over Dry Wash built?

It was built in 2002, making it 23 years old in 2025.

What condition is Happy Valley Road over Dry 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 July 2022.

How much traffic does Happy Valley Road over Dry Wash carry?

About 21,160 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Happy Valley Road over Dry Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 112 ft wide.

Who owns Happy Valley Road over Dry Wash?

It is owned by the City or Municipal Highway Agency.