Roads in Montgomery County are maintained by one of four agencies or organizations: The Maryland State Highway Administration (MSHA) maintains all roads that have route numbers. They include roads such as Georgia Avenue (MD 97), Connecticut Avenue (MD 185), Wisconsin Avenue / Rockville Pike / Frederick Road (MD 355), as well as Interstate highways within Montgomery County. These sections are I-495, I-270 and I-370.Check the State website for information. http://www.sha.state.md.us. Private Home Owners Associations (HOA's) maintain roads that are typically within the HOA boundaries. An example of this is Rossmoor Leisure World in Aspen Hill. Most town home and condominium roads are maintained by their Homeowner's Associations. Municipalities such as Rockville and Gaithersburg and others maintain all roads within the municipal boundaries. Click here for information on all Municipalities in Montgomery County: http://www.mdarchives.state.md.us/msa/mdmanual/36loc/mo/html/momu.html Montgomery County Division of Highway Services (DHS) is responsible for maintaining all other roads throughout the County. The types of maintenance include resurfacing roads, shoulder maintenance, curb, gutter and sidewalk repair and replacement, roadway tree maintenance Functional Classes DHS maintains the following three functional classes of roads: Main Roads (also known as Primary/Arterial Roads and includes Urban District and Commercial Business District Roads) Neighborhood Streets  (the interconnecting streets in the community) Rural/Rustic Roads  (country roads) Maintenance Activities and Work Schedules MCDOT's Division of Highway of Services performs three primary types of road repairs on streets that it maintains. These are Concrete Repairs, Street Repairs and Repaving/Resurfacing. The type of work is generally determined by the above described functional class of a given road/street.  Contacts Highway Services staff can be contacted through the Customer Service Center at 311.