Old Mill Plant. over Back Creek
Roanoke County, Virginia · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old Mill Plant. over Back Creek in Roanoke County, Virginia, 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 2006, making it 19 years old at the 2025 inventory.
- It carries about 80 vehicles a day (traffic count year 2013).
- Its listed owner is the state highway agency.
- It is one of 82 of the 207 inventoried bridges in Roanoke County rated good (39.6%); 1 (0.5%) 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 → (37.19778, -80.07972)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 85 ft |
| Location | 0.01-rt 221; 0.40-rt 1482 |
| NBI structure number | 000000000030795 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Virginia department of transportation.
Busiest bridges in Roanoke County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Route 0581 over Walker Avenue | 1966 | 73,663 | Fair |
| Route 581 over Routes 11; 116 & 221 | 1968 | 73,663 | Fair |
| Routes 581 & 220 over RTEs 11; 116 & 460 | 1965 | 73,429 | Fair |
| Route 0581 over Tazewell Avenue | 1968 | 67,101 | Fair |
| Route 0581 over Kimball Avenue | 1968 | 67,101 | Fair |
| Roy Webber EXP/220 over Wonju Steet | 1977 | 62,286 | Fair |
All bridges nearby: Roanoke County, VA bridge conditions · every bridge in Roanoke County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.