Low clearance bridges in Frederick County, Maryland

5 spots where an interstate or US highway in Frederick County has less than 16 ft of clearance, lowest first. The lowest is 14 ft 11 in on I-270, 1.35 Miles North of MD 85. 5 are under 15 ft.

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

Map of Frederick County, Maryland with a pin on each low spot.
Hover a pin to read it, tap it to find it in the list. © Mapbox © OpenStreetMap
ClearanceWhereHighway
14 ft 11 inUnder I-70 Ebr & Ramp L · 1.35 Miles North of MD 85 · MapI-270
14 ft 11 inOver Potomac River CSX C & O · Point of Rocks · MapUS-15
14 ft 11 inUnder I-70 WBR · 0.24 Mile West of MD 180 · MapUS-15
14 ft 11 inUnder MD 17 · 1.79 Miles East of MD 180 · MapUS-340
14 ft 11 inUnder Catholic Church Road · 1.57 Miles East of MD 17 · MapUS-340