US0090 over Mc Mahon Canal
FairLafourche Parish, Louisiana · .7 MI East of LA 182 · Structure no. 022904240807392
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected June 2024
- Type
- Slab
- Concrete
- Length
- 250 ft
- 10 main spans
- Daily traffic
- 13,535
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US0090 over Mc Mahon Canal is a concrete slab carrying US0090 over Mc Mahon Canal in Lafourche Parish, Louisiana. It was built in 1976, so it is 49 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 13,535 vehicles a day, roughly 18% of them trucks, projected to reach 14,888 by 2041. The structure is 250 ft (76.2 m) long and 43 ft wide.
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 US0090 over Mc Mahon Canal built?
It was built in 1976, making it 49 years old in 2025.
What condition is US0090 over Mc Mahon Canal 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 June 2024.
How much traffic does US0090 over Mc Mahon Canal carry?
About 13,535 vehicles per day (2021 count), of which roughly 18% are trucks.
How long is US0090 over Mc Mahon Canal?
The structure is 250 ft (76.2 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.
Who owns US0090 over Mc Mahon Canal?
It is owned by the State Highway Agency.