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Maryland Department of Transportation
State Highway Administration
Baltimore County Height, Weight & Underclearance Restrictions
Bridges on State Maintained Highways with Vertical Clearances less then 14 Feet 6 Inches.
Baltimore County-Height Restriction
Bridge No. Route No. Crossing Max. Vertical Clearance
I-83 Timonium Road under 14'-5"
0312300 I-695 Ingleside Avenue 13’-9”
0313100 I-695 I-695 Ramp 'J' 14'-4"
0313500 Security Blvd. I-695 Ramp 'P' 14'-4"
0314000 I-695 Milford Mill Road under 14'-0"
0314900 I-695 Greenspring Avenue under 14'-1"
  MD 700 SB AMTRAK over 13'-11"
  MD 140 Western Md. Rwy. Over 13'-10"

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.

Baltimore County-Weight Restriction
Bridge No. Route No. Crossing Single Unit Vehicle Combination Vehicle
MD 128 McGill Run 50,000 50,000
MD 128 Western MD Railway 55,000 55,000
I-695 Putty Hill Road 52,000 80,000
I-70 Patapsco State Park 60,000 80,000
MD 25 Black Rock Run 60,000 80,000

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.

Baltimore County-Underclearance over Navigable waterways
Bridge No.
Approx. Vertical Underclearance in feet

MD 157(Penin Exp)

Bear Creek


Bridge underclearances over navigable waterways are estimated vertical distances above normal water surface levels. These levels can vary considerably from season to season and for tidal waters will vary daily. Undercleance for tidal waters is above mean high tide. Therefore, because of these variations the elevations are provided as a service to the public as a guide and the information should be verified by field measurements by the boater if the exact underclearance is critical to the boater. SHA does not accept liability for inaccurate information.

*** These are movable bridges; the underclearance shown is for bridge in a closed condition. Click here for schedule of opening and closings

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Revised: June 18, 2008