Rocks Road over Natchez Trace Parkway
Madison County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rocks Road over Natchez Trace Parkway in Madison County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1962, making it 63 years old at the 2025 inventory.
- It carries about 2,080 vehicles a day (traffic count year 2010).
- It is one of 140 of the 311 inventoried bridges in Madison County rated fair (45.0%); 10 (3.2%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (32.57103, -89.88883)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete single box beam |
| Length | about 96 ft |
| Location | 5.9 Miles From Ms Route 4 |
| NBI structure number | 5570208P0000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Madison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 55 over Purple Creek | 1979 | 104,000 | Good |
| I 55 over US 51 & Cnic RR | 1985 | 47,000 | Fair |
| I 55 over US 51 & Cnic RR | 1985 | 47,000 | Fair |
| I 55 over I 220E to I 55 North | 1979 | 47,000 | Fair |
| I 55 over I 220E to I 55 North | 1979 | 47,000 | Fair |
| I 220 over Ditch | 1977 | 47,000 | Good |
All bridges nearby: Madison County, MS bridge conditions · every bridge in Madison County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.