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Federal-Aid Highways

Federal-Aid Highways in Michigan

Federal-Aid Definitions
National Functional Classifications: Using NFC Maps 

Statewide AADT and NFC Review Web-mapping Applications

AADT Map 
NFC Mapping Application for Current, Proposed, Future and Approved Routes 
Traffic Feedback Map 

Adjusted Census Urban Boundary (ACUB) Statewide Review Links

FHWA Approved Adjusted Census Urban Boundary Mapping Website 
MDOT Information on Adjusted Census Urban Boundary (ACUB) Statewide Review

NFC and NHS Information

NFC Individual Review Worksheet 
2013 FHWA Functional Classification - Urban Guidance 
FHWA National Highway System MI Maps - Including MAP21 Changes 

Questions?
MDOT-NFC@Michigan.gov
MDOT-NHS@michigan.gov

Trunkline and NHS Maps

NHS Map with Inset v19 20200408
Trunkline and NHS Map with Inset v19 20200408
Trunkline Map with Inset v19 20200408
Trunkline NHS FAW Map with Inset v19 20200428

Legacy Maps 

Pre-NFC (1991) Federal Aid Systems County Maps