US Bridges

LA0308 over Company Canal

Fair

Lafourche Parish, Louisiana · .5 MI South of LA 655 · Structure no. 022904070300001

Built
1974
51 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
12,187
2021 count
Owner
State
State Highway Agency

About this bridge

LA0308 over Company Canal is a concrete slab carrying LA0308 over Company Canal in Lafourche Parish, Louisiana. It was built in 1974, so it is 51 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 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 12,187 vehicles a day, roughly 11% of them trucks, projected to reach 13,405 by 2041. The structure is 120 ft (36.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA0308
CrossesCompany Canal
Location.5 MI South of LA 655
RouteState Highway 308
CountyLafourche Parish
StateLouisiana
Coordinates29.65103, -90.53299
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating79 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width47 ft (14.4 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,187 (2021)
Projected traffic13,405 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Company Canal built?

It was built in 1974, making it 51 years old in 2025.

What condition is LA0308 over Company 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 June 2024.

How much traffic does LA0308 over Company Canal carry?

About 12,187 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0308 over Company Canal?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns LA0308 over Company Canal?

It is owned by the State Highway Agency.