Smithtown Rd over Kirby Creek
Stone County, Mississippi · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Smithtown Rd over Kirby Creek in Stone County, Mississippi, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 250 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 58 of the 125 inventoried bridges in Stone County rated fair (46.4%); 6 (4.8%) 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 → (30.83378, -89.27117)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 125 ft |
| Location | Sec 35 T 2S R13W B |
| NBI structure number | SA6600000000030 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Stone County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 49 over Terrell Creek | 1992 | 13,000 | Good |
| US 49 over Terrell Creek | 1959 | 13,000 | Good |
| US 49 over Ten Mile Creek | 1991 | 13,000 | Good |
| US 49 over Ten Mile Creek | 1964 | 13,000 | Good |
| US 49 over Kcs RR | 1991 | 13,000 | Good |
| US 49 over Kcs RR | 1964 | 13,000 | Fair |
All bridges nearby: Stone County, MS bridge conditions · every bridge in Stone County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.