SDDOT / Project Development / Planning / Highway Classification / Functional Classification

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

Project Development is responsible for coordinating the functional classification for all roads in South Dakota. Functional classification refers to the type of service each particular road provides the traveling public. Functional Classification designations include:

Classification	Type of Service
Principal Arterial - Interstate	Urban and Rural
Principal Arterial - Freeway	Urban
Principal Arterial - Other	Urban and Rural
Minor Arterial	Urban and Rural
Major Collector	Rural
Collector	Urban
Minor Collector	Rural
Local	Urban And Rural

Planning and Programs coordinates with city, county, and federal government agencies as well as other local and tribal entities to determine mutually agreeable designations for these roads. These recommended designations are then forwarded to FHWA for final approval.

In addition to describing the type of service, the functional classification designation is also used to determine federal funding eligibility. All roads except those classified as Minor Collector and Local are eligible for participation in federal funding. See "FUNDING ELIGIBILITY" exceptions to this rule.

Highway Functional Classification Manual - Adobe PDF File

State Highway Functional Classification Map - Adobe PDF File

Functional Classification Maps by County - Adobe PDF Files

Functional Classification Maps by City - Adobe PDF Files