Scour-Critical Bridges in Virginia
Virginia has 8 bridges rated scour-critical by the Federal Highway Administration. These bridges have foundations that are unstable or at risk of undermining during flood events. Scour-critical doesn't mean a bridge is about to collapse — it means extra monitoring and countermeasures are in place — but these structures are priorities for repair or replacement.
How this ranking works
This state list filters to NBI scour ratings 0 through 3, then sorts by average daily traffic. It is intended to show flood-vulnerability exposure, not to label any bridge as currently unsafe.
| Bridge | County | Scour Rating | Daily Traffic | Condition |
|---|---|---|---|---|
| U.s. Route 17 over Dismal Swamp Canal | Isle of Wight | 3 — Serious | 35,000 | Poor |
| Richmond Hwy. over Chopawamsic Creek | Stafford | 3 — Serious | 20,738 | Poor |
| Garrisonville Rd. over Aquia Creek | Stafford | 3 — Serious | 15,728 | Fair |
| State Route 165 over A & C Canal | Isle of Wight | 3 — Serious | 11,000 | Poor |
| Nbl Richmond HWY over Austin Run | Stafford | 3 — Serious | 9,070 | Fair |
| Venus Way Ext. over Smith Creek | Alleghany | 3 — Serious | 200 | Poor |
| Wild Wood Road over North Meherrin River | Lunenburg | 3 — Serious | 83 | Fair |
| Jameson Mill RD over Nicholas Creek | Franklin | 3 — Serious | 10 | Fair |