US Bridges

Southern Ave over Drainage Ditch

Good

Maricopa County, Arizona · 0.25 MI E Sossamon · Structure no. 08572

Built
1980
45 years old, rebuilt 2000
Condition
Good
inspected July 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
14,646
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southern Ave over Drainage Ditch is a concrete continuous culvert carrying Southern Ave over Drainage Ditch in Maricopa County, Arizona. It was built in 1980 and reconstructed in 2000, so it is 45 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 14,646 vehicles a day, roughly 4% of them trucks, projected to reach 14,656 by 2039. The structure is 32 ft (9.8 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouthern Ave
CrossesDrainage Ditch
Location0.25 MI E Sossamon
RouteCity Street 0
StateArizona
Coordinates33.39333, -111.65
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 inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width80 ft (24.4 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,646 (2019)
Projected traffic14,656 by 2039
Trucks4%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Southern Ave over Drainage Ditch built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2000.

What condition is Southern Ave over Drainage Ditch 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 July 2023.

How much traffic does Southern Ave over Drainage Ditch carry?

About 14,646 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Southern Ave over Drainage Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 80 ft wide.

Who owns Southern Ave over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.