US Bridges

Union Hills DR over Wash

Good

Maricopa County, Arizona · 350 E of 94th ST · Structure no. 11256

Built
1995
30 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
188 ft
12 main spans
Daily traffic
600
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Union Hills DR over Wash is a concrete continuous culvert carrying Union Hills DR over Wash in Maricopa County, Arizona. It was built in 1995, so it is 30 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 610 by 2038. The structure is 188 ft (57.3 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

CarriesUnion Hills DR
CrossesWash
Location350 E of 94th ST
RouteCity Street 0
CountyMaricopa County
StateArizona
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 inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length188 ft (57.3 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2018)
Projected traffic610 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Union Hills DR over Wash built?

It was built in 1995, making it 30 years old in 2025.

What condition is Union Hills DR 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 2025.

How much traffic does Union Hills DR over Wash carry?

About 600 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Union Hills DR over Wash?

The structure is 188 ft (57.3 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns Union Hills DR over Wash?

It is owned by the City or Municipal Highway Agency.