US Bridges

Mountain RD over Wash

Good

Maricopa County, Arizona · S of Ray RD · Structure no. 11635

Built
2008
17 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
48 ft
4 main spans
Daily traffic
2,347
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mountain RD over Wash is a concrete continuous culvert carrying Mountain RD over Wash in Maricopa County, Arizona. It was built in 2008, so it is 17 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 2,347 vehicles a day, roughly 2% of them trucks, projected to reach 2,357 by 2042. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMountain RD
CrossesWash
LocationS of Ray RD
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.3198, -111.5922
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,347 (2022)
Projected traffic2,357 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Mountain RD over Wash built?

It was built in 2008, making it 17 years old in 2025.

What condition is Mountain RD 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 2024.

How much traffic does Mountain RD over Wash carry?

About 2,347 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Mountain RD over Wash?

The structure is 48 ft (14.6 m) long with a longest span of 11 ft (3.4 m).

Who owns Mountain RD over Wash?

It is owned by the City or Municipal Highway Agency.