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Maryland Department of Transportation
State Highway Administration
Frederick County Height & Weight Restrictions
Bridges on State Maintained Highways with Vertical Clearances less then 14 Feet 6 Inches.
Frederick County-Height Restriction
Bridge No.
Route No. Crossing Max. Vertical Clearance


MD 355

Monocacy River

14'-0" Clearance at kneebrace - Full width of roadway restricted


MD 75

CSX Railroad over


Harbor Tunnel Clearance - 14' Maximum Allowable Height of Vehicle and Load 13'.
The vertical clearance limitations shown on this sheet are not guaranteed. Due to resurfacing of highways etc. these are subject to change and may be greater at certain positions under a structure. If dimensions are to be used to determine routes for exact movement, field measurements will be necessary.

Frederick County-Weight Restriction
Bridge No.
Route No. Crossing Single Unit Vehicle Combination Vehicle


MD 144 WB

Monocacy River




Quinn Rd.

Long Branch




MD 17

Catoctin Creek



This chart shows structures on the State of Maryland Highway System that cannot carry legal weight vehicles. If you need to move an overweight load into or through Maryland please call 1-888-375-1084 for assistance.

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Revised: June 18, 2008