US23/58/421 over Clinch River
Scott County, Virginia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US23/58/421 over Clinch River in Scott County, Virginia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1971 and reconstructed in 1991, making it 54 years old at the 2025 inventory.
- It carries about 12,606 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 97 of the 138 inventoried bridges in Scott County rated fair (70.3%); 14 (10.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 5 to 7, substructure 5 to 6.
- Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
- 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 → (36.64794, -82.74931)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 7 | Good condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 502 ft |
| Location | 0.03 to 625; 0.11 to 627 |
| NBI structure number | 000000000016549 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Virginia department of transportation.
Busiest bridges in Scott County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 23 over Branch | 1932 | 20,812 | Fair |
| Route 23 over N Fork Holston River | 1943 | 20,812 | Good |
| Route 23 Business over NS Rr;little Moccasin Ck | 2000 | 15,883 | Fair |
| US Highway 23 over Troublesome Creek | 1970 | 12,606 | Fair |
| US Highway 23 over Troublesome Creek | 1970 | 12,606 | Fair |
| Route 0023 over Little Stock Creek | 1970 | 12,370 | Fair |
All bridges nearby: Scott County, VA bridge conditions · every bridge in Scott County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.