US Bridges

Williams DR over Wash

Good

Maricopa County, Arizona · 400 S of Pinnacle Peak · Structure no. 11272

Built
1996
29 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
810
2025 count
Owner
City
City or Municipal Highway Agency

About this bridge

Williams DR over Wash is a concrete continuous culvert carrying Williams DR over Wash in Maricopa County, Arizona. It was built in 1996, so it is 29 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 810 vehicles a day, roughly 5% of them trucks, projected to reach 820 by 2040. The structure is 36 ft (11 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

CarriesWilliams DR
CrossesWash
Location400 S of Pinnacle Peak
RouteCity Street 0
StateArizona
Functional classUrban Local

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.
Culvert8 Very GoodNo problems noted.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width70 ft (21.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2025)
Projected traffic820 by 2040
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 Williams DR over Wash built?

It was built in 1996, making it 29 years old in 2025.

What condition is Williams 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 Williams DR over Wash carry?

About 810 vehicles per day (2025 count), of which roughly 5% are trucks.

How long is Williams DR over Wash?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m) and a deck 70 ft wide.

Who owns Williams DR over Wash?

It is owned by the City or Municipal Highway Agency.