LA0021 over Marias Creek
GoodSt. Tammany Parish, Louisiana · .45 MI N JCT LA21 & LA16 · Structure no. 625200300203521
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 52 ft
- 8 main spans
- Daily traffic
- 7,160
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
LA0021 over Marias Creek is a concrete culvert carrying LA0021 over Marias Creek in St. Tammany Parish, Louisiana. It was built in 1987, so it is 38 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 7,160 vehicles a day, roughly 12% of them trucks, projected to reach 7,876 by 2041. The structure is 52 ft (15.8 m) long and 137 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was LA0021 over Marias Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is LA0021 over Marias Creek 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 2023.
How much traffic does LA0021 over Marias Creek carry?
About 7,160 vehicles per day (2021 count), of which roughly 12% are trucks.
How long is LA0021 over Marias Creek?
The structure is 52 ft (15.8 m) long with a longest span of 6 ft (1.8 m) and a deck 137 ft wide.
Who owns LA0021 over Marias Creek?
It is owned by the State Highway Agency.