US Bridges

LA0156 over Saline Bayou

Poor

Winn Parish, Louisiana · 0.92 Mi. West of LA 1233 · Structure no. 086400920200001

Built
1952
73 years old
Condition
Poor
inspected September 2023
Type
Slab
Concrete
Length
440 ft
22 main spans
Daily traffic
525
2021 count
Owner
State
State Highway Agency

About this bridge

LA0156 over Saline Bayou is a concrete slab carrying LA0156 over Saline Bayou in Winn Parish, Louisiana. It was built in 1952, so it is 73 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.

It carries about 525 vehicles a day, roughly 14% of them trucks, projected to reach 577 by 2041. The structure is 440 ft (134.1 m) long and 29 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesLA0156
CrossesSaline Bayou
Location0.92 Mi. West of LA 1233
RouteState Highway 156
CountyWinn Parish
StateLouisiana
Coordinates32.00042, -92.89479
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans22
Design loadH 15
Structure length440 ft (134.1 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2021)
Projected traffic577 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 LA0156 over Saline Bayou built?

It was built in 1952, making it 73 years old in 2025.

What condition is LA0156 over Saline Bayou 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 September 2023.

How much traffic does LA0156 over Saline Bayou carry?

About 525 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0156 over Saline Bayou?

The structure is 440 ft (134.1 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0156 over Saline Bayou?

It is owned by the State Highway Agency.