US Bridges

Circle Mtn Road over Wash

Fair

Maricopa County, Arizona · 0.6 MI E/ New River RD · Structure no. 10084

Built
1996
29 years old
Condition
Fair
inspected December 2022
Type
Culvert
Concrete Continuous
Length
101 ft
2 main spans
Daily traffic
4,130
2020 count
Owner
County
County Highway Agency

About this bridge

Circle Mtn Road over Wash is a concrete continuous culvert carrying Circle Mtn Road 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 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 4,130 vehicles a day, roughly 2% of them trucks, projected to reach 4,140 by 2040. The structure is 101 ft (30.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCircle Mtn Road
CrossesWash
Location0.6 MI E/ New River RD
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.88691, -112.06327
Functional classRural Local

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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,130 (2020)
Projected traffic4,140 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Circle Mtn Road over Wash built?

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

What condition is Circle Mtn Road 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 Circle Mtn Road over Wash carry?

About 4,130 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Circle Mtn Road over Wash?

The structure is 101 ft (30.8 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Circle Mtn Road over Wash?

It is owned by the County Highway Agency.