US Bridges

Southern Ave over Rwcd Canal

Fair

Maricopa County, Arizona · 0.7 MI E JCT Higley RD · Structure no. 09433

Built
1967
58 years old, rebuilt 1987
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
17,422
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southern Ave over Rwcd Canal is a prestressed concrete tee beam carrying Southern Ave over Rwcd Canal in Maricopa County, Arizona. It was built in 1967 and reconstructed in 1987, so it is 58 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 17,422 vehicles a day, roughly 5% of them trucks, projected to reach 17,432 by 2042. The structure is 35 ft (10.7 m) long and 107 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSouthern Ave
CrossesRwcd Canal
Location0.7 MI E JCT Higley RD
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.3939, -111.7064
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width107 ft (32.5 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic17,422 (2023)
Projected traffic17,432 by 2042
Trucks5%
Lanes on structure7
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 Southern Ave over Rwcd Canal built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1987.

What condition is Southern Ave over Rwcd 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 December 2024.

How much traffic does Southern Ave over Rwcd Canal carry?

About 17,422 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Southern Ave over Rwcd Canal?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 107 ft wide.

Who owns Southern Ave over Rwcd Canal?

It is owned by the City or Municipal Highway Agency.