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Federal Functional Classification (FC)

Description

Federal Functional Classification is the system by which roads are grouped into functional systems according to the type of service and amount of traffic the facility carries. Functional Classification is used to determine design standards of roads and determines Federal Aid funding eligibility. Federal Functional Classification is assigned to all public roads using federal guidelines and is approved by FHWA.

Federal Aid Eligibility
These maps show the official Federal Functional Classification.

Federal Aid eligible roads include roads federally designated as:
  • Major collector
  • Minor arterial
  • Principal arterial
  • Interstate
Map 21, Functional Class, & NHS

2010 Statewide Federal Aid Urban Boundary and Functional Classification Review

For information about the Historic 2000 Functional Class Review
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Reports

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2010 Urban/Urbanized and Rural FC Mileage Summaries

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