5 bridges with vertical clearance data on 684 in Virginia. Lowest: 173.2ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 173.2ft | Bel Pre Road | Route 15/29 Bypass | .05 From 703 & .25 To 665 | 1972 | Map |
| 233.9ft | Dry Bridge Road | Csx_Railroad | 0.3M Rte207-1.1M Rte656 | 1992 | Map |
| 989.8ft | Rocky Ford Rd-684 | Goose Creek | 1.00-Rte 753;0.80-Rte 691 | 2019 | Map |
| 989.8ft | Sugar Tree Hollow | Little Patterson Creek | 1.6-Rte655; 2.6-Rte682 | 2022 | Map |
| 3277.6ft | Sugartrehollow/684 | Little Patterson Creek | 2.4-Rte 682 2.1-Rte 655 | 2022 | Map |