Natchez Trace Park over Big Brown Slough
GoodPrentiss County, Mississippi · 4.06 Miles North of Ms Ro · Structure no. 5570236P0000000
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 247 ft
- 4 main spans
- Daily traffic
- 980
- 2024 count
- Owner
- Federal
- National Park Service
About this bridge
Natchez Trace Park over Big Brown Slough is a prestressed concrete continuous stringer/multi-beam or girder carrying Natchez Trace Park over Big Brown Slough in Prentiss County, Mississippi. It was built in 1981, so it is 44 years old, older than the Mississippi average of 38.9 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 980 vehicles a day, roughly 3% of them trucks, projected to reach 1,078 by 2044. The structure is 247 ft (75.3 m) long and 37 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Natchez Trace Park over Big Brown Slough built?
It was built in 1981, making it 44 years old in 2025.
What condition is Natchez Trace Park over Big Brown Slough 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 2023.
How much traffic does Natchez Trace Park over Big Brown Slough carry?
About 980 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Natchez Trace Park over Big Brown Slough?
The structure is 247 ft (75.3 m) long with a longest span of 73 ft (22.3 m) and a deck 37 ft wide.
Who owns Natchez Trace Park over Big Brown Slough?
It is owned by the National Park Service.