SR 12 over Bonny Slough Tributary
Lowndes County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 12 over Bonny Slough Tributary in Lowndes County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1999, making it 26 years old at the 2025 inventory.
- It carries about 6,800 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 149 of the 248 inventoried bridges in Lowndes County rated good (60.1%); 11 (4.4%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (33.53115, -88.36399)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 70 ft |
| Location | 0.8 Mi N SR 50 |
| NBI structure number | 310001204418310 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Lowndes County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 82 over Puckett Road | 1989 | 32,000 | Fair |
| US 82 over Bn RR & Kcs RR | 1989 | 32,000 | Fair |
| US 82 over Luxapalila Creek | 1989 | 32,000 | Fair |
| US 82 over Sand Road | 1989 | 32,000 | Fair |
| US 82 over Stream | 1991 | 32,000 | Good |
| US 82 over SR 50 | 1989 | 32,000 | Good |
All bridges nearby: Lowndes County, MS bridge conditions · every bridge in Lowndes County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.