LA0421 over Middle Fork Thompson Crk
GoodWest Feliciana Parish, Louisiana · 7.92 Miles E. of US 61 · Structure no. 616308630207921
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 240 ft
- 3 main spans
- Daily traffic
- 739
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0421 over Middle Fork Thompson Crk is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0421 over Middle Fork Thompson Crk in West Feliciana Parish, Louisiana. It was built in 1995, so it is 30 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 739 vehicles a day, roughly 10% of them trucks, projected to reach 812 by 2041. The structure is 240 ft (73.2 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0421 over Middle Fork Thompson Crk built?
It was built in 1995, making it 30 years old in 2025.
What condition is LA0421 over Middle Fork Thompson Crk 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 February 2024.
How much traffic does LA0421 over Middle Fork Thompson Crk carry?
About 739 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is LA0421 over Middle Fork Thompson Crk?
The structure is 240 ft (73.2 m) long with a longest span of 80 ft (24.4 m) and a deck 32 ft wide.
Who owns LA0421 over Middle Fork Thompson Crk?
It is owned by the State Highway Agency.