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• National highways
• State highways
• 1940s State highways
• Regional highways
• County highways

Georgia

State Highways

Present

1948

Appalachian Developmental Highway

Hawaii

State Highways

Present

Idaho

State Highways

Present

1948

Illinois

State Highways

Present

1948

Toll Highways

Illinois Tollway trailblazer. This sign is used for all Illinois toll highways.

Indiana

State Highways

Present

1948

Copyright © 1996-2007 by James Lin · content updated on January 29, 2000