US Bridges

LA0308 over L Valley Canal

Fair

Lafourche Parish, Louisiana · 0.4M East of LA 648 · Structure no. 022904070412521

Built
1992
33 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
5,050
2021 count
Owner
State
State Highway Agency

About this bridge

LA0308 over L Valley Canal is a concrete slab carrying LA0308 over L Valley Canal in Lafourche Parish, Louisiana. It was built in 1992, so it is 33 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 5,050 vehicles a day, roughly 13% of them trucks, projected to reach 5,555 by 2041. The structure is 95 ft (29 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesLA0308
CrossesL Valley Canal
Location0.4M East of LA 648
RouteState Highway 308
CountyLafourche Parish
StateLouisiana
Coordinates29.78577, -90.7832
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,050 (2021)
Projected traffic5,555 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 LA0308 over L Valley Canal built?

It was built in 1992, making it 33 years old in 2025.

What condition is LA0308 over L Valley 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 April 2024.

How much traffic does LA0308 over L Valley Canal carry?

About 5,050 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0308 over L Valley Canal?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0308 over L Valley Canal?

It is owned by the State Highway Agency.