Old Boston Road over Withrow Branch
Nelson County, Kentucky · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old Boston Road over Withrow Branch in Nelson County, Kentucky, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1934, making it 91 years old at the 2025 inventory.
- It carries about 87 vehicles a day (traffic count year 2010).
- Its listed owner is the county highway agency.
- It is one of 80 of the 151 inventoried bridges in Nelson County rated fair (53.0%); 14 (9.3%) 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 → (37.80917, -85.48611)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 32 ft |
| Location | .7 Mi W of W-jct US 31E |
| NBI structure number | 090C00073N |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Nelson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-150 over Mill Creek | 1950 | 12,583 | Fair |
| US 150 over Bluegrass Parkway | 2018 | 12,583 | Good |
| US-150 over Rowan Creek | 1950 | 10,961 | Fair |
| US-31E over Bluegrass Parkway | 1964 | 10,321 | Fair |
| US-31E over Beech Fork River | 2000 | 10,321 | Fair |
| US-150 over Slough Beech Fork | 1957 | 9,268 | Good |
All bridges nearby: Nelson County, KY bridge conditions · every bridge in Nelson County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.