I0010 over Bayou Portage
FairSt. Martin Parish, Louisiana · 5.00 MI W of LA 3177 · Structure no. 035004500609522
- Built
- 1970
- 55 years old, rebuilt 2021
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 180 ft
- 3 main spans
- Daily traffic
- 1,585
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I0010 over Bayou Portage is a prestressed concrete stringer/multi-beam or girder carrying I0010 over Bayou Portage in St. Martin Parish, Louisiana. It was built in 1970 and reconstructed in 2021, so it is 55 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 1,585 vehicles a day, roughly 22% of them trucks, projected to reach 1,743 by 2041. The structure is 180 ft (54.9 m) long and 63 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 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 I0010 over Bayou Portage built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2021.
What condition is I0010 over Bayou Portage 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 May 2023.
How much traffic does I0010 over Bayou Portage carry?
About 1,585 vehicles per day (2021 count), of which roughly 22% are trucks.
How long is I0010 over Bayou Portage?
The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 63 ft wide.
Who owns I0010 over Bayou Portage?
It is owned by the State Highway Agency.