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Federal-aid Highway System Length by Functional System, 2000-2024 (HM-15)

U.S Department of Transportation

Updated Oct 25, 2026

About this dataset

Annual road miles by functional system (National Highway System, other Federal-aid highways, and non-Federal-aid highways) and state for the 50 states, DC, and PR from the Highway Statistics Series table HM-15. Note: Missing 2009 and 2021.

Data and resources (3)

Prototype by Datopian · not an official government website · data from data.virginia.gov