US Bridges

7th Street over Arizona Canal

Fair

Maricopa County, Arizona · 0.32 MI N of Northern · Structure no. 09188

Built
1940
85 years old, rebuilt 1965
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
51 ft
2 main spans
Daily traffic
24,463
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th Street over Arizona Canal is a concrete continuous slab carrying 7th Street over Arizona Canal in Maricopa County, Arizona. It was built in 1940 and reconstructed in 1965, so it is 85 years old, older 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 24,463 vehicles a day, roughly 1% of them trucks, projected to reach 24,473 by 2042. The structure is 51 ft (15.5 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries7th Street
CrossesArizona Canal
Location0.32 MI N of Northern
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.5574, -112.0653
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.8 US tons
Inventory rating21.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span24 ft (7.3 m)
Deck width74 ft (22.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,463 (2024)
Projected traffic24,473 by 2042
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 7th Street over Arizona Canal built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1965.

What condition is 7th Street over Arizona Canal 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 7th Street over Arizona Canal carry?

About 24,463 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is 7th Street over Arizona Canal?

The structure is 51 ft (15.5 m) long with a longest span of 24 ft (7.3 m) and a deck 74 ft wide.

Who owns 7th Street over Arizona Canal?

It is owned by the City or Municipal Highway Agency.