US Bridges

LA0865 over Ash Slough

FairPosted for load

Franklin Parish, Louisiana · 1.4 MI East of LA 4 · Structure no. 582103490200661

Built
1970
55 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
96 ft
5 main spans
Daily traffic
1,879
2021 count
Owner
State
State Highway Agency

About this bridge

LA0865 over Ash Slough is a concrete slab carrying LA0865 over Ash Slough in Franklin Parish, Louisiana. It was built in 1970, so it is 55 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.

It carries about 1,879 vehicles a day, roughly 15% of them trucks, projected to reach 2,066 by 2041. The structure is 96 ft (29.3 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLA0865
CrossesAsh Slough
Location1.4 MI East of LA 4
RouteState Highway 865
Coordinates32.12356, -91.7244
Functional classRural Minor Collector

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span19 ft (5.8 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,879 (2021)
Projected traffic2,066 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 LA0865 over Ash Slough built?

It was built in 1970, making it 55 years old in 2025.

What condition is LA0865 over Ash Slough 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 November 2024.

How much traffic does LA0865 over Ash Slough carry?

About 1,879 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0865 over Ash Slough?

The structure is 96 ft (29.3 m) long with a longest span of 19 ft (5.8 m) and a deck 32 ft wide.

Who owns LA0865 over Ash Slough?

It is owned by the State Highway Agency.