US0090 over Ramp M
GoodSt. Mary Parish, Louisiana · 6.3 MI W of LA 662 · Structure no. 035104240535638
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 590 ft
- 8 main spans
- Daily traffic
- 24,384
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
US0090 over Ramp M is a prestressed concrete stringer/multi-beam or girder carrying US0090 over Ramp M in St. Mary Parish, Louisiana. It was built in 1984, so it is 41 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 24,384 vehicles a day, roughly 14% of them trucks, projected to reach 26,822 by 2041. The structure is 590 ft (179.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US0090 over Ramp M built?
It was built in 1984, making it 41 years old in 2025.
What condition is US0090 over Ramp M 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 2024.
How much traffic does US0090 over Ramp M carry?
About 24,384 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is US0090 over Ramp M?
The structure is 590 ft (179.8 m) long with a longest span of 75 ft (22.9 m) and a deck 33 ft wide.
Who owns US0090 over Ramp M?
It is owned by the State Highway Agency.