Doughty RD over Louis Bayou
GoodCatahoula Parish, Louisiana · 2.42 M S of LA 922 · Structure no. 581331440091441
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete
- Length
- 152 ft
- 8 main spans
- Daily traffic
- 90
- 1984 count
- Owner
- County
- County Highway Agency
About this bridge
Doughty RD over Louis Bayou is a concrete slab carrying Doughty RD over Louis Bayou in Catahoula Parish, Louisiana. It was built in 1997, so it is 28 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 90 vehicles a day, projected to reach 99 by 2004. The structure is 152 ft (46.3 m) long and 27 ft wide. If it were closed, the detour would be 37.3 mi (60 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Doughty RD over Louis Bayou built?
It was built in 1997, making it 28 years old in 2025.
What condition is Doughty RD over Louis Bayou 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 April 2023.
How much traffic does Doughty RD over Louis Bayou carry?
About 90 vehicles per day (1984 count).
How long is Doughty RD over Louis Bayou?
The structure is 152 ft (46.3 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.
Who owns Doughty RD over Louis Bayou?
It is owned by the County Highway Agency.