The Appalachian Development Highway System is a series of highway corridors in the Appalachia region of the eastern United States. The routes are designed as local and regional routes for improving ec
ADHS signs for U.S. Route 78/Alabama State Route 4/ADHS Corridor X with their distinctive blue color. Most other states do not have distinctive highway shields for ADHS, however.
US 19/US 74/US 129 (Appalachian Highway), in Murphy
Sign for Corridor V and US 72 in Alabama
Corridor Q
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Corridor Q is a highway in the U.S. states of Kentucky, Virginia, and West Virginia. It is part of the Appalachian Development Highway System and U.S. Route 460. Corridor Q runs from Corridor B near P
Appalachian Development Highway System
…Prestonsburg. It forms part of a route from Lexington, Kentucky to Roanoke, Virginia using Interstate 64 (I-64), Corridor I, Corridor R, Corridor B, Corridor Q, and I-81. Corridor S is a highway in the U.S. state of Tennessee. It is routed entirely along U.S. Route 25E (US 25E); from Interstate 81 (I-81), near…
Corridor Q's western terminus at Corridor B/US 23/US 119 in 2006. An interchange has since been completed at this location.
Corridor Q in Dickenson County, Virginia