US Bridges

US 61 over Thompson CR

Good

West Feliciana Parish, Louisiana · 1.9 Mi. S. of LA 10 · Structure no. 616300000610394

Built
2022
3 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
900 ft
9 main spans
Daily traffic
13,861
2021 count
Owner
State
State Highway Agency

About this bridge

US 61 over Thompson CR is a concrete continuous stringer/multi-beam or girder carrying US 61 over Thompson CR in West Feliciana Parish, Louisiana. It was built in 2022, so it is 3 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,861 vehicles a day, roughly 18% of them trucks, projected to reach 15,247 by 2041. The structure is 900 ft (274.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 61
CrossesThompson CR
Location1.9 Mi. S. of LA 10
RouteU.S. Route 61
Coordinates30.74755, -91.28666
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating84.3 US tons
Inventory rating51.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadGreater than HL 93
Structure length900 ft (274.3 m)
Longest span100 ft (30.5 m)
Deck width41 ft (12.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,861 (2021)
Projected traffic15,247 by 2041
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 61 over Thompson CR built?

It was built in 2022, making it 3 years old in 2025.

What condition is US 61 over Thompson CR 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 June 2024.

How much traffic does US 61 over Thompson CR carry?

About 13,861 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US 61 over Thompson CR?

The structure is 900 ft (274.3 m) long with a longest span of 100 ft (30.5 m) and a deck 41 ft wide.

Who owns US 61 over Thompson CR?

It is owned by the State Highway Agency.