Historic U.S. 99

Historic U.S. 99

U.S. 99, once the "Main Street of California," was eliminated as an extant route during the 1964 California U.S. Highway Purge. It was mostly replaced by Interstate 5, although a significant portion exists today as California 99 and California 86. Along with U.S. 60, 70, 80, and 91, U.S. 99 was eliminated in its entirety from the Golden State. Moreover, just like U.S. 66, U.S. 399, and U.S. 466, the entire route of U.S. 99 was eliminated. The last U.S. 99 shields on the route from Calexico to Blaine, Washington, were gone by the early 1970s. In spite of this, much of the historical route of U.S. 99 has been signed with brown markers to keep the spirit of the former Main Street alive. This page chronicles some extant segments.

A detail overview for U.S. 99 is available at Casey Cooper's Finding U.S. 99 in California.

For more on some of the routes that have since replaced U.S. 99 (from south to north), see the following pages:

References:

Cooper, C. (n.d.) Finding US 99 Guide. GBCnet.com. https://www.gbcnet.com/ushighways/US99/index.html

Faigin, D. (2023). Former State Route 256. California Highways. https://www.cahighways.org/ROUTE256.html

Photo Credits:

Page Updated Monday April 06, 2015.