US Bridges

LA0860 over Hurricane Slough

Fair

Franklin Parish, Louisiana · 0.4 MI West of LA 17 · Structure no. 582103480301571

Built
1961
64 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
78 ft
4 main spans
Daily traffic
199
2021 count
Owner
State
State Highway Agency

About this bridge

LA0860 over Hurricane Slough is a concrete slab carrying LA0860 over Hurricane Slough in Franklin Parish, Louisiana. It was built in 1961, so it is 64 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.

It carries about 199 vehicles a day, roughly 15% of them trucks, projected to reach 218 by 2041. The structure is 78 ft (23.8 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0860
CrossesHurricane Slough
Location0.4 MI West of LA 17
RouteState Highway 860
Coordinates32.30141, -91.5522
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length78 ft (23.8 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 traffic199 (2021)
Projected traffic218 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 LA0860 over Hurricane Slough built?

It was built in 1961, making it 64 years old in 2025.

What condition is LA0860 over Hurricane 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 LA0860 over Hurricane Slough carry?

About 199 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0860 over Hurricane Slough?

The structure is 78 ft (23.8 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns LA0860 over Hurricane Slough?

It is owned by the State Highway Agency.