US Bridges

Warner Road over Drainage Canal

Good

Maricopa County, Arizona · 3.8 MI S JCT US 60 · Structure no. 06792

Built
1986
39 years old
Condition
Good
inspected March 2021
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
31,026
2019 count
Owner
State
State Highway Agency

About this bridge

Warner Road over Drainage Canal is a concrete continuous culvert carrying Warner Road over Drainage Canal in Maricopa County, Arizona. It was built in 1986, so it is 39 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 31,026 vehicles a day, roughly 5% of them trucks, projected to reach 31,036 by 2039. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesWarner Road
CrossesDrainage Canal
Location3.8 MI S JCT US 60
RouteState Highway 10
StateArizona
Coordinates33.334, -111.9709
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2021
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 rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 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 traffic31,026 (2019)
Projected traffic31,036 by 2039
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Warner Road over Drainage Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is Warner Road over Drainage Canal 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 March 2021.

How much traffic does Warner Road over Drainage Canal carry?

About 31,026 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Warner Road over Drainage Canal?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns Warner Road over Drainage Canal?

It is owned by the State Highway Agency.