Gribblenation

US Route 99 in the Los Angeles-Redlands corridors was originally aligned on a multiplex of US Route 66 from Pasadena east to San Bernardino via Legislative Route Number 9.  During September of 1934 the American Association of State Highway Officials approved a request from the California Highway Commission to move US Route 99 onto a new alignment in the Los Angeles-Redlands corridor following the recently extended Legislative Route Number 26.  This blog explores the alignment of US Route 99 in the Los Angeles-Redlands corridor from 1935 to 1963 when the highway was truncated to the end of the Golden State Freeway.  Featured as the blog cover is the Arroyo Seco Parkway as seen in the January/February 1944 California Highways & Public Works shortly after it had been extended from Avenue 22 to downtown Los Angeles during December 1943.   This blog is part of the larger Gribblenation US Route 99 Page.  For more information pertaining to the other various segments of US Route 99 and it&