7 bridges with vertical clearance data on 636 in Virginia. Lowest: 163.1ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 163.1ft | Hardbarger Rd 636 | 81 | 1.20 Rt 640; 0.20 Rt 11 | 1963 | Map |
| 181.4ft | Hooes Rd. Conn. A | Fairfax Co. Pkwy | 00.20Fr3330/00.05To0000 | 1992 | Map |
| 220.5ft | Seneca Hollow 636 | Rte. I-81 | 0.75-Rt 821;2.0-Rt 11&460 | 2012 | Map |
| 224.7ft | Friendship Rd.636 | Rte. I 81 | 1.15-Rt 11;0.15-Rt820 | 2012 | Map |
| 269.7ft | Lifecore Drive | Buckingham Branch Rr | 1.05 Rt 285 - 0.75 Rt 250 | 2015 | Map |
| 989.8ft | Seneca Hollow Rd | Sf Roanoke River | 0.40-Rt 11;2.10-I81 | 2022 | Map |
| 989.8ft | Nash Road | Rita Branch | 1.0Mifr634&0.61Mito635 | 2019 | Map |