US Bridges

Missouri Ave over Wash

Good

Maricopa County, Arizona · N/ Marshall Ave · Structure no. 10510

Built
2002
23 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
2,500
2023 count
Owner
County
County Highway Agency

About this bridge

Missouri Ave over Wash is a concrete continuous culvert carrying Missouri Ave over Wash in Maricopa County, Arizona. It was built in 2002, so it is 23 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 2,500 vehicles a day, projected to reach 2,510 by 2042. The structure is 26 ft (7.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMissouri Ave
CrossesWash
LocationN/ Marshall Ave
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.51566, -112.34906
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 36 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 alignment6: Equal to present minimum criteria
Operating rating74.2 US tons
Inventory rating44.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width44 ft (13.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic2,510 by 2042
Trucks0%
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

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 Missouri Ave over Wash built?

It was built in 2002, making it 23 years old in 2025.

What condition is Missouri Ave 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 December 2023.

How much traffic does Missouri Ave over Wash carry?

About 2,500 vehicles per day (2023 count).

How long is Missouri Ave over Wash?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m) and a deck 44 ft wide.

Who owns Missouri Ave over Wash?

It is owned by the County Highway Agency.