For installation of a new guardrail where no guardrail is currently installed, please contact the Division of Traffic Engineering and Operations at Trafficops@montgomerycountymd.gov. Please include your name, phone, address of requested location and the reason for request.

If the road is a numbered route such as MD 355 (Rockville Pike), MD 117 (Clopper Road), please contact Maryland Department of Transportation State Highway Administration at 301.513.7300.