US Bridges

LA0331 over Bayou Tigre

PoorPosted for load

Vermilion Parish, Louisiana · 0.55 MI S. of LA 14 · Structure no. 035708573700551

Built
1977
48 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
1,518
2021 count
Owner
State
State Highway Agency

About this bridge

LA0331 over Bayou Tigre is a concrete slab carrying LA0331 over Bayou Tigre in Vermilion Parish, Louisiana. It was built in 1977, so it is 48 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,518 vehicles a day, roughly 13% of them trucks, projected to reach 1,669 by 2041. The structure is 76 ft (23.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0331
CrossesBayou Tigre
Location0.55 MI S. of LA 14
RouteState Highway 331
Coordinates29.95168, -92.0407
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,518 (2021)
Projected traffic1,669 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 LA0331 over Bayou Tigre built?

It was built in 1977, making it 48 years old in 2025.

What condition is LA0331 over Bayou Tigre in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does LA0331 over Bayou Tigre carry?

About 1,518 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0331 over Bayou Tigre?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 43 ft wide.

Who owns LA0331 over Bayou Tigre?

It is owned by the State Highway Agency.