Either call VDOT's maintenance line at 703-383-8368 or online form
http://www.virginiadot.org/travel/citizen.asp to ask them to look at it or contact the applicable Board of Supervisors member (Gerry Hyland, Mount Vernon District) at 703-780-7518 or
mtvernon@fairfaxcounty.gov. Hyland's staff will ask VDOT to look at it on your behalf.