US Bridges

LA0959 over Schlie Bayou

Fair

East Feliciana Parish, Louisiana · 0.07 M NW LA 959&LA 958 · Structure no. 611908191800261

Built
1959
66 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
31 ft
4 main spans
Daily traffic
1,679
2021 count
Owner
State
State Highway Agency

About this bridge

LA0959 over Schlie Bayou is a concrete culvert carrying LA0959 over Schlie Bayou in East Feliciana Parish, Louisiana. It was built in 1959, so it is 66 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 1,679 vehicles a day, roughly 10% of them trucks, projected to reach 1,846 by 2041. The structure is 31 ft (9.4 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesLA0959
CrossesSchlie Bayou
Location0.07 M NW LA 959&LA 958
RouteState Highway 959
CountyEast Feliciana Parish
StateLouisiana
Coordinates30.7626, -91.03176
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating54.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length31 ft (9.4 m)
Longest span7 ft (2.1 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,679 (2021)
Projected traffic1,846 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 LA0959 over Schlie Bayou built?

It was built in 1959, making it 66 years old in 2025.

What condition is LA0959 over Schlie Bayou 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 October 2023.

How much traffic does LA0959 over Schlie Bayou carry?

About 1,679 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0959 over Schlie Bayou?

The structure is 31 ft (9.4 m) long with a longest span of 7 ft (2.1 m) and a deck 40 ft wide.

Who owns LA0959 over Schlie Bayou?

It is owned by the State Highway Agency.