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East-West Gateway is responsible for maintaining and updating the region's Roadway Functional Classification System mandated under federal law. Roadways are classified according to their urban or rural setting and the type of service they provide based on considerations such as: connectivity, mobility, accessibility, vehicle miles traveled, average annual daily traffic, and abutting land use. The purpose of roadway functional classification is to describe how travel is channelized through our roadway network and to determine project eligibility for inclusion in the Long Range Plan  and short-range Transportation Improvement Program (TIP).

A roadway must already be classified at minimum as a planned or existing Minor Collector in an urban area or Major Collector in a rural area in order to be eligible for federal funds. The following table shows the roadway functional class hierarchy.  For more detailed information on functional class criteria and characteristics please see FHWA Functional Classification Guidelines: Concepts, Criteria and Procedures. EWG has completed a local functional class procedure manual based on FHWA guidlines.

Table 1
Roadway Functional Classification Structure





Other Principal






To maintain the functional classification system, East-West Gateway accepts applications for functional reclassification during the months of May and November each year. A full-scale system wide review is conducted every 5 to 10 years.

Applications for Functional Classification Revision:
Application in Fillable PDF form
Procedure Manual

For questions or comments, please contact Rodney Halbert of our staff.

Functional Classification Maps:

The newest revisions to the Missouri and Illinois Roadway Functional Classification maps are currently awaiting final approval from state and federal officials. The latest maps are shown here to bring applicants up to date on recent changes, but it must be noted that these maps are not official until receipt of final FHWA approval.

Please note:  maps may load slowly because of large file sizes

St. Clair County Functional Classification Map
Madison County Functional Classification Map
Monroe County Functional Classification Map
Franklin County Functional Classification Map
Jefferson County Functional Classification Map
City of St. Louis County Functional Classification Map
St. Charles County Functional Classification Map
St. Louis County Functional Classification Map


State DOT Functional Classification Links:

  Missouri  Illinois


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East-West Gateway Council of Governments
One Memorial Dr., Ste 1600
St. Louis, MO  63102
phone:  (314) 421-4220 or (618) 274-2750
    fax: (314) 231-6120

last update:  Friday, April 21, 2017