US Bridges

12th Street over Az Canal Div Channel

Good

Maricopa County, Arizona · 12th Street at Acdc · Structure no. 07890

Built
1990
35 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
15,302
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

12th Street over Az Canal Div Channel is a prestressed concrete box beam or girders - multiple carrying 12th Street over Az Canal Div Channel in Maricopa County, Arizona. It was built in 1990, so it is 35 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 15,302 vehicles a day, roughly 1% of them trucks, projected to reach 16,302 by 2041. The structure is 55 ft (16.8 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries12th Street
CrossesAz Canal Div Channel
Location12th Street at Acdc
RouteCity Street 0
StateArizona
Coordinates33.5458, -112.0564
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.1 US tons
Inventory rating55.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span50 ft (15.2 m)
Deck width58 ft (17.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,302 (2021)
Projected traffic16,302 by 2041
Trucks1%
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

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 12th Street over Az Canal Div Channel built?

It was built in 1990, making it 35 years old in 2025.

What condition is 12th Street over Az Canal Div Channel 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 November 2023.

How much traffic does 12th Street over Az Canal Div Channel carry?

About 15,302 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is 12th Street over Az Canal Div Channel?

The structure is 55 ft (16.8 m) long with a longest span of 50 ft (15.2 m) and a deck 58 ft wide.

Who owns 12th Street over Az Canal Div Channel?

It is owned by the City or Municipal Highway Agency.