I0010 over W Atchafalaya Floodway
FairSt. Martin Parish, Louisiana · 2.5 MI East of LA 347 · Structure no. 035004500609931
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 23,440 ft
- 239 main spans
- Daily traffic
- 37,370
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0010 over W Atchafalaya Floodway is a steel continuous girder and floorbeam system carrying I0010 over W Atchafalaya Floodway in St. Martin Parish, Louisiana. It was built in 1971, so it is 54 years old, older than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 37,370 vehicles a day, roughly 22% of them trucks, projected to reach 41,107 by 2041. The structure is 23,440 ft (7,144.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I0010 over W Atchafalaya Floodway built?
It was built in 1971, making it 54 years old in 2025.
What condition is I0010 over W Atchafalaya Floodway in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does I0010 over W Atchafalaya Floodway carry?
About 37,370 vehicles per day (2021 count), of which roughly 22% are trucks.
How long is I0010 over W Atchafalaya Floodway?
The structure is 23,440 ft (7,144.5 m) long with a longest span of 573 ft (174.7 m) and a deck 43 ft wide.
Who owns I0010 over W Atchafalaya Floodway?
It is owned by the State Highway Agency.