US Bridges

LA0359 over Bayou Saquette

Fair

St. Landry Parish, Louisiana · 0.3 MI North of LA 103 · Structure no. 034908492900031

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
744
2022 count
Owner
State
State Highway Agency

About this bridge

LA0359 over Bayou Saquette is a concrete culvert carrying LA0359 over Bayou Saquette in St. Landry Parish, Louisiana. It was built in 1966, so it is 59 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 744 vehicles a day, roughly 15% of them trucks, projected to reach 818 by 2042. The structure is 21 ft (6.4 m) long and 45 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0359
CrossesBayou Saquette
Location0.3 MI North of LA 103
RouteState Highway 359
CountySt. Landry Parish
StateLouisiana
Coordinates30.61255, -91.9631
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width45 ft (13.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic744 (2022)
Projected traffic818 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 LA0359 over Bayou Saquette built?

It was built in 1966, making it 59 years old in 2025.

What condition is LA0359 over Bayou Saquette 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 May 2023.

How much traffic does LA0359 over Bayou Saquette carry?

About 744 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is LA0359 over Bayou Saquette?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 45 ft wide.

Who owns LA0359 over Bayou Saquette?

It is owned by the State Highway Agency.