US Bridges

Fort Mcdowell Road over Wash

Fair

Maricopa County, Arizona · N/ Yavapai RD · Structure no. 10104

Built
1997
28 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
42 ft
3 main spans
Daily traffic
1,136
2023 count
Owner
County
County Highway Agency

About this bridge

Fort Mcdowell Road over Wash is a concrete continuous culvert carrying Fort Mcdowell Road over Wash in Maricopa County, Arizona. It was built in 1997, so it is 28 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 1,136 vehicles a day, roughly 10% of them trucks, projected to reach 1,146 by 2042. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFort Mcdowell Road
CrossesWash
LocationN/ Yavapai RD
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.62344, -111.68132
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 36 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.3 US tons
Inventory rating58.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,136 (2023)
Projected traffic1,146 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Fort Mcdowell Road over Wash built?

It was built in 1997, making it 28 years old in 2025.

What condition is Fort Mcdowell 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 January 2025.

How much traffic does Fort Mcdowell Road over Wash carry?

About 1,136 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Fort Mcdowell Road over Wash?

The structure is 42 ft (12.8 m) long with a longest span of 13 ft (4 m).

Who owns Fort Mcdowell Road over Wash?

It is owned by the County Highway Agency.