US Bridges

LA0618 over Pine Flat Slough

Fair

Franklin Parish, Louisiana · 0.2 MI W of LA 869 · Structure no. 582101670103091

Built
2008
17 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
133 ft
7 main spans
Daily traffic
1,271
2021 count
Owner
State
State Highway Agency

About this bridge

LA0618 over Pine Flat Slough is a concrete slab carrying LA0618 over Pine Flat Slough in Franklin Parish, Louisiana. It was built in 2008, so it is 17 years old, younger 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 1,271 vehicles a day, roughly 21% of them trucks, projected to reach 1,398 by 2041. The structure is 133 ft (40.5 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesLA0618
CrossesPine Flat Slough
Location0.2 MI W of LA 869
RouteState Highway 618
CountyFranklin Parish
StateLouisiana
Coordinates32.19741, -91.7661
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,271 (2021)
Projected traffic1,398 by 2041
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 LA0618 over Pine Flat Slough built?

It was built in 2008, making it 17 years old in 2025.

What condition is LA0618 over Pine Flat 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 December 2023.

How much traffic does LA0618 over Pine Flat Slough carry?

About 1,271 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is LA0618 over Pine Flat Slough?

The structure is 133 ft (40.5 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns LA0618 over Pine Flat Slough?

It is owned by the State Highway Agency.