US Bridges

Tabony LN over Drainage Canal

FairPosted for load

Plaquemines Parish, Louisiana · 0.0 S of SR 39 · Structure no. 023829336894591

Built
1960
65 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
—
2016 count
Owner
County
County Highway Agency

About this bridge

Tabony LN over Drainage Canal is a concrete slab carrying Tabony LN over Drainage Canal in Plaquemines Parish, Louisiana. It was built in 1960, so it is 65 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

No traffic count is recorded. The structure is 76 ft (23.2 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTabony LN
CrossesDrainage Canal
Location0.0 S of SR 39
RouteCounty Highway 0
Coordinates29.56217, -89.76345
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Tabony LN over Drainage Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is Tabony LN over Drainage 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 2023.

How much traffic does Tabony LN over Drainage Canal carry?

No traffic count is recorded for this structure.

How long is Tabony LN over Drainage Canal?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns Tabony LN over Drainage Canal?

It is owned by the County Highway Agency.