Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration

Office of Planning, Environment, & Realty (HEP)
Planning · Environment · Real Estate

HEP Events Guidance Publications Glossary Awards Contacts

National Highway System

States

The National Highway System (NHS) includes the Interstate Highway System as well as other roads important to the nation's economy, defense, and mobility. The NHS was developed by the Department of Transportation (DOT) in cooperation with the states, local officials, and metropolitan planning organizations (MPOs).

Where is the NHS?

You can view state maps of the National Highway System. These maps reflect updates in accordance to the NHS memorandum dated September 28, 2012 as required by Section 1104 of the Moving Ahead for Progress in the 21st Century Act (MAP-21).

Alabama

Alaska

Arizona

Arkansas

California (North)

California (South)

Colorado

Connecticut

Delaware

District of Columbia

Florida

Georgia

Hawaii

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

North Dakota

Ohio

Oklahoma

Oregon

Pennsylvania

Puerto Rico

Rhode Island

South Carolina

South Dakota

Tennessee

Texas (East)

Texas (West)

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

(PDF Map source: NHS Shapefile (Zip 137Mb) and Shapefile Data Item Definitions (metadata (Zip 38Kb)))

Updated: 3/25/2015
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000