US Bridges

LA0092 over Bayou Tortue

Good

St. Martin Parish, Louisiana · 1.84 MI East of LA 182 · Structure no. 035002130801841

Built
2004
21 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
4,071
2021 count
Owner
State
State Highway Agency

About this bridge

LA0092 over Bayou Tortue is a concrete slab carrying LA0092 over Bayou Tortue in St. Martin Parish, Louisiana. It was built in 2004, so it is 21 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,071 vehicles a day, roughly 13% of them trucks, projected to reach 4,478 by 2041. The structure is 120 ft (36.6 m) long and 46 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesLA0092
CrossesBayou Tortue
Location1.84 MI East of LA 182
RouteState Highway 92
Coordinates30.10433, -91.8826
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating42.9 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 width46 ft (14 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,071 (2021)
Projected traffic4,478 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0092 over Bayou Tortue built?

It was built in 2004, making it 21 years old in 2025.

What condition is LA0092 over Bayou Tortue in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does LA0092 over Bayou Tortue carry?

About 4,071 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0092 over Bayou Tortue?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns LA0092 over Bayou Tortue?

It is owned by the State Highway Agency.