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Trans Dev / Transportation Data

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
The maps on this site http://www.oregon.gov/ODOT/TD/TDATA/Pages/gis/odotmaps.aspx 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 Click here

2010 Statewide Federal Aid Urban Boundary and Functional Classification Review Click here.

For information about the 2000 Functional Class Review Click here.

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Reports
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2010 Urban/Urbanized and Rural FC Mileage Summaries

 
Links to FHWA
(Note: These links will take you outside ODOT´s website & open a new window.)

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Links to Related Topics