US Bridges

Southern Ave over Ockley Ditch

Fair

Caddo Parish, Louisiana · 2.3 M N of LA 511 · Structure no. 040932285934531

Built
1965
60 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
8,132
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southern Ave over Ockley Ditch is a concrete culvert carrying Southern Ave over Ockley Ditch in Caddo Parish, Louisiana. It was built in 1965, so it is 60 years old, older than the Louisiana average of 43 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 8,132 vehicles a day, projected to reach 8,945 by 1999. The structure is 22 ft (6.7 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSouthern Ave
CrossesOckley Ditch
Location2.3 M N of LA 511
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.47494, -93.75486
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width62 ft (18.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,132 (1979)
Projected traffic8,945 by 1999
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$187,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Southern Ave over Ockley Ditch built?

It was built in 1965, making it 60 years old in 2025.

What condition is Southern Ave over Ockley Ditch 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 March 2023.

How much traffic does Southern Ave over Ockley Ditch carry?

About 8,132 vehicles per day (1979 count).

How long is Southern Ave over Ockley Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 62 ft wide.

Who owns Southern Ave over Ockley Ditch?

It is owned by the City or Municipal Highway Agency.