US Bridges

LA0146 over Sugar Creek Relief

Fair

Claiborne Parish, Louisiana · 1.0 MI East of LA 533 · Structure no. 041400850814621

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
133 ft
7 main spans
Daily traffic
1,360
2021 count
Owner
State
State Highway Agency

About this bridge

LA0146 over Sugar Creek Relief is a concrete slab carrying LA0146 over Sugar Creek Relief in Claiborne Parish, Louisiana. It was built in 1979, so it is 46 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 1,360 vehicles a day, roughly 19% of them trucks, projected to reach 1,496 by 2041. The structure is 133 ft (40.5 m) long and 35 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesLA0146
CrossesSugar Creek Relief
Location1.0 MI East of LA 533
RouteState Highway 146
Coordinates32.69008, -92.8616
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,360 (2021)
Projected traffic1,496 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 LA0146 over Sugar Creek Relief built?

It was built in 1979, making it 46 years old in 2025.

What condition is LA0146 over Sugar Creek Relief 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 August 2023.

How much traffic does LA0146 over Sugar Creek Relief carry?

About 1,360 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0146 over Sugar Creek Relief?

The structure is 133 ft (40.5 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0146 over Sugar Creek Relief?

It is owned by the State Highway Agency.