US Bridges

7th Avenue over Arizona Canal

Fair

Maricopa County, Arizona · 0.05 MI N of Dunlap Ave · Structure no. 09304

Built
1950
75 years old, rebuilt 1970
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
6,045
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th Avenue over Arizona Canal is a concrete continuous slab carrying 7th Avenue over Arizona Canal in Maricopa County, Arizona. It was built in 1950 and reconstructed in 1970, so it is 75 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 6,045 vehicles a day, roughly 1% of them trucks, projected to reach 6,055 by 2041. The structure is 52 ft (15.8 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries7th Avenue
CrossesArizona Canal
Location0.05 MI N of Dunlap Ave
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.5683, -112.0825
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
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 within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.4 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span20 ft (6.1 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,045 (2021)
Projected traffic6,055 by 2041
Trucks1%
Lanes on structure5
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 7th Avenue over Arizona Canal built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1970.

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

About 6,045 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is 7th Avenue over Arizona Canal?

The structure is 52 ft (15.8 m) long with a longest span of 20 ft (6.1 m) and a deck 76 ft wide.

Who owns 7th Avenue over Arizona Canal?

It is owned by the City or Municipal Highway Agency.