US Bridges

Mcdowell Road over Drainage Channel

Fair

Maricopa County, Arizona · 0.07 MI E of SR101L · Structure no. 07211

Built
2001
24 years old
Condition
Fair
inspected January 2022
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
28,792
2020 count
Owner
State
State Highway Agency

About this bridge

Mcdowell Road over Drainage Channel is a concrete continuous culvert carrying Mcdowell Road over Drainage Channel in Maricopa County, Arizona. It was built in 2001, so it is 24 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 28,792 vehicles a day, roughly 5% of them trucks, projected to reach 28,802 by 2040. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMcdowell Road
CrossesDrainage Channel
Location0.07 MI E of SR101L
RouteCity Street 10
CountyMaricopa County
StateArizona
Coordinates33.4648, -112.2675
Functional classUrban Minor Arterial

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 inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,792 (2020)
Projected traffic28,802 by 2040
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mcdowell Road over Drainage Channel built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mcdowell Road over Drainage Channel 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 2022.

How much traffic does Mcdowell Road over Drainage Channel carry?

About 28,792 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Mcdowell Road over Drainage Channel?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns Mcdowell Road over Drainage Channel?

It is owned by the State Highway Agency.