Low clearance bridges on I-66

5 spots where I-66 has less than 16 ft of clearance, in the order you drive them from west to east. The lowest is 14 ft 6 in in Virginia, 00.01FR29SB / 00.01TO29NB. 3 are under 15 ft.

Posted signs and your permit come first. These are the clearances Virginia reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.

Map of I-66 with a pin on each low spot.
Hover a pin to read it, tap it to find it in the list. © Mapbox © OpenStreetMap

Virginia · 5 under 16 ft

ClearanceWhereCounty
15 ft 5 inUnder 17 SBL · .28 FR 713 & .18 to 66_EBL · MapFauquier County
14 ft 8 inUnder Ashville Road · .02 FR F185 & .02 to F184 · MapFauquier County
15 ft 6 inUnder North Utah Street · 00.05FR15ST / 00.10TO13ST · MapArlington County
14 ft 6 inUnder North Nash Street · 00.01FR29SB / 00.01TO29NB · MapArlington County
14 ft 6 inUnder Fort Myer Drive · 00.02FR29NBL / 00.02TO29SBL · MapArlington County