SDDOT / Project Development / Planning / Highway Classification / County Highway System

Planning Data Manager: Larry Dean
Phone: (605) 773-3157; Fax (605) 773-6608

Project Development is the official record keeper of the primary "County Highway System" as specified in SDCL 31-12-2. Roads can be added or deleted from this designated system, but must follow these "procedures."

Roads are added or removed at the local county level. The respective county commissioners make these decisions based on their knowledge and public input. They pass a resolution specifying the modification and forward to SDDOT for processing. Here the resolution is reviewed to insure the necessary steps have been taken and presented to the South Dakota Transportation Commission.

There is also a "County Secondary Highway" designation. This is defined as the next lower level of roads in counties with no organized townships. This would be known as township roads in counties with organized townships. However, this law does not apply to this designation. If the county does add or remove roads from the "County Secondary Highway," these modifications should be reported to Greg Pollreisz or Perry Griffith in Transportation Inventory Management.

COUNTY HIGHWAY SYSTEM MAPS By County - Adobe PDF Files