California State Route 212 was a briefly lived post-1964 State Highway Renumbering designation assigned to Valley Boulevard in the Los Angeles metropolitan area. California State Route 212 was defined as beginning at the east city limit of Los Angeles at the location of the planned Long Beach Freeway and followed Valley Boulevard to Interstate 10 in El Monte. The origin of California State Route 212 in the State Highway System was part of the interim components used by US Routes 60-70-99 as Ramona Boulevard was being constructed. The blog cover image is of the 1964 Division of Highways Map which depicted the alignment of California State Route 212.
The history of California State Route 212
The origins of what would become California State Route 212 (CA 212) can be traced to the extension of US Route 60 into California. As originally envisioned in the early drafts of US Route System what became US Route 66 in California was intended to be US Route 60. The designation of the Chicago-Los Angeles corridor was intended to carry a X0 route number given it was to denote a major east/west US Route. Ultimately the State of Kentucky petitioned to have a X0 US Route and the Chicago-Los Angeles corridor became US Route 66 in the finalized US Route System created by the American Association of State Highway Officials (AASHO) during November 1926.
The California State Highway Engineer submitted a recommended routing of US 60 to the AASHO Executive Secretary on September 8th, 1931. The route description of US 60 show as ending in Los Angeles by way of Pomona at an undisclosed terminus.
The new definition of segment (a) of LRN 77 appears on the 1954 Division of Highways Map. Notably LRN 167 and the course of the planned Long Beach Freeway is displayed as connecting with the western terminus of LRN 77 segment (a) at the Los Angeles city limit.