US Bridges

Mcdowell Mt Ranch over Wash

Good

Maricopa County, Arizona · 300 W of Thompsonpeakpky · Structure no. 11245

Built
1996
29 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
3,600
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mcdowell Mt Ranch over Wash is a concrete continuous culvert carrying Mcdowell Mt Ranch 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 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 3,600 vehicles a day, roughly 5% of them trucks, projected to reach 3,610 by 2038. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMcdowell Mt Ranch
CrossesWash
Location300 W of Thompsonpeakpky
RouteCity Street 0
StateArizona
Coordinates33.6311, -111.8654
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 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic3,600 (2018)
Projected traffic3,610 by 2038
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Mcdowell Mt Ranch over Wash built?

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

What condition is Mcdowell Mt Ranch 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 2025.

How much traffic does Mcdowell Mt Ranch over Wash carry?

About 3,600 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Mcdowell Mt Ranch over Wash?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.4 m).

Who owns Mcdowell Mt Ranch over Wash?

It is owned by the City or Municipal Highway Agency.