Bridge conditions in Alleghany County, North Carolina
117 inventoried bridges · 17 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 117 Alleghany County bridges in the federal inventory, 17 carry a poor rating. That 14.5% share is roughly 2x the national average.
- 17 of the 117 bridges in Alleghany County, North Carolina, are rated in poor condition (14.5%) in the 2025 National Bridge Inventory, as of .
- 51 bridges (43.6%) are rated good and 49 (41.9%) fair.
- The median Alleghany County bridge was built in 1988.
- The busiest poor-rated bridge is Blue Ridge Parkway over Big Pine Creek (built 1937), carrying about 1,347 vehicles a day.
Good 43.6% · Fair 41.9% · Poor 14.5% of 117 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Blue Ridge Parkway over Big Pine Creek | 1937 | 1,347 | Poor |
| Blue Ridge Parkway over Big Pine Creek | 1938 | 1,347 | Poor |
| Blue Ridge Parkway over Big Pine Creek | 1937 | 1,347 | Poor |
| Blue Ridge Parkway over Big Pine Creek | 1937 | 1,347 | Poor |
| Blue Ridge Parkway over Brush Creek | 1936 | 1,347 | Poor |
| SR1426 over Little River | 1988 | 630 | Poor |
| SR1403 over Ut to New River | 1974 | 300 | Poor |
| SR1113 over Glade Creek | 1967 | 220 | Poor |
| SR1459 over Little Pine Creek | 1979 | 210 | Poor |
| SR1345 over Rock Creek | 1989 | 130 | Poor |
| SR1445 over Crab Creek | 1989 | 120 | Poor |
| Stone Mtn.rd. over Stone Mountain Creek | 1960 | 100 | Poor |
| SR1149 over Prather Creek | 1967 | 90 | Poor |
| SR1318 over Potato Creek | 1963 | 75 | Poor |
| SR1144 over Meadow Fork Creek | 1960 | 50 | Poor |
| SR1140 over Little River | 1960 | 30 | Poor |
| SR1131 over Waterfalls Creek | 1963 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US21 over Little River | 1920 | 7,200 | Fair |
| US21 over Brush Creek | 1997 | 3,700 | Good |
| US21 over Glade Creek | 2016 | 3,700 | Good |
| US21 over Laurel Branch | 2016 | 3,300 | Good |
| SR1206 over Bledsoe Creek | 1997 | 3,100 | Good |
| SR1206 over Bledsoe Creek | 1997 | 3,100 | Good |
| SR1206 over Ut to Bledsoe Creek | 2019 | 3,100 | Good |
| SR1172 over Bledsoe Creek | 1961 | 2,800 | Fair |
| NC18 over Little River | 2020 | 1,800 | Good |
| NC18 over Glady Fork Creek | 1950 | 1,800 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of North Carolina: North Carolina bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.