US421B over Reddies River
Wilkes County, North Carolina · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US421B over Reddies River in Wilkes County, North Carolina, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1935 and reconstructed in 1967, making it 90 years old at the 2025 inventory.
- It carries about 18,000 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 51 of the 350 inventoried bridges in Wilkes County rated poor (14.6%); 51 (14.6%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (36.15926, -81.15386)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 284 ft |
| Location | 0.25 Mi. E. Jct. SR1500 |
| NBI structure number | 000000001930012 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Wilkes County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US421 Byp over Tucker Hole Creek | 1955 | 31,500 | Fair |
| US421 Byp over Little Cub Creek | 1966 | 26,000 | Good |
| US421 Byp over Cub Creek | 1966 | 25,000 | Fair |
| US421 over Miller Creek | 1955 | 23,000 | Fair |
| US421 Sbl over SR2325 | 2002 | 19,500 | Good |
| NC18 over Yadkin River | 1993 | 17,000 | Fair |
All bridges nearby: Wilkes County, NC bridge conditions · every bridge in Wilkes County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.