US Bridges

115th Avenue over Wash

Fair

Maricopa County, Arizona · 540 S/ Happy Valley Pkwy · Structure no. 10783

Built
2006
19 years old
Condition
Fair
inspected December 2022
Type
Culvert
Concrete Continuous
Length
79 ft
7 main spans
Daily traffic
3,056
2020 count
Owner
County
County Highway Agency

About this bridge

115th Avenue over Wash is a concrete continuous culvert carrying 115th Avenue over Wash in Maricopa County, Arizona. It was built in 2006, so it is 19 years old, younger 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 3,056 vehicles a day, roughly 5% of them trucks, projected to reach 3,066 by 2040. The structure is 79 ft (24.1 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries115th Avenue
CrossesWash
Location540 S/ Happy Valley Pkwy
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.71208, -112.30671
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 36 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans7
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span11 ft (3.4 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,056 (2020)
Projected traffic3,066 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 115th Avenue over Wash built?

It was built in 2006, making it 19 years old in 2025.

What condition is 115th Avenue 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 December 2022.

How much traffic does 115th Avenue over Wash carry?

About 3,056 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 115th Avenue over Wash?

The structure is 79 ft (24.1 m) long with a longest span of 11 ft (3.4 m) and a deck 34 ft wide.

Who owns 115th Avenue over Wash?

It is owned by the County Highway Agency.