Gamm RD Ext over Myricks Bayou
GoodCaddo Parish, Louisiana · 0.75 MI N. of LA 169 · Structure no. 040932430935321
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Concrete
- Length
- 36 ft
- 3 main spans
- Daily traffic
- 36
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Gamm RD Ext over Myricks Bayou is a concrete culvert carrying Gamm RD Ext over Myricks Bayou in Caddo 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 36 vehicles a day, projected to reach 39 by 2039. The structure is 36 ft (11 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Gamm RD Ext over Myricks Bayou built?
It was built in 1997, making it 28 years old in 2025.
What condition is Gamm RD Ext over Myricks 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 March 2023.
How much traffic does Gamm RD Ext over Myricks Bayou carry?
About 36 vehicles per day (2019 count).
How long is Gamm RD Ext over Myricks Bayou?
The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.
Who owns Gamm RD Ext over Myricks Bayou?
It is owned by the County Highway Agency.