US Bridges

LA0463 over Thompson Branch

Good

Vernon Parish, Louisiana · 7.9 MI N of LA 10 · Structure no. 085800000080675

Built
2017
8 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
28 ft
4 main spans
Daily traffic
482
2021 count
Owner
State
State Highway Agency

About this bridge

LA0463 over Thompson Branch is a concrete culvert carrying LA0463 over Thompson Branch in Vernon Parish, Louisiana. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 482 vehicles a day, roughly 14% of them trucks, projected to reach 530 by 2041. The structure is 28 ft (8.5 m) long and 59 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesLA0463
CrossesThompson Branch
Location7.9 MI N of LA 10
RouteState Highway 463
Coordinates31.04056, -92.88969
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span6 ft (1.8 m)
Deck width59 ft (18 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic482 (2021)
Projected traffic530 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 LA0463 over Thompson Branch built?

It was built in 2017, making it 8 years old in 2025.

What condition is LA0463 over Thompson Branch 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 November 2024.

How much traffic does LA0463 over Thompson Branch carry?

About 482 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0463 over Thompson Branch?

The structure is 28 ft (8.5 m) long with a longest span of 6 ft (1.8 m) and a deck 59 ft wide.

Who owns LA0463 over Thompson Branch?

It is owned by the State Highway Agency.