Gribblenation

California State Route 73 is 21 mile limited access highway aligned over the Corona del Mar Freeway and San Joaquin Hills Toll Road.  California State Route 73 connects Interstate 5 near San Juan Capistrano westward to Interstate 405 in Costa Mesa.  Prior to the construction of the Corona del Mar Freeway and San Joaquin Hills Tollway California State Route 73 was a surface highway located on largely MacArthur Boulevard. Part 1; the history of California State Route 73 What became California State Route 73 ("CA 73") entered the State Highway System in 1933 as Legislative Route Number 184 ("LRN 184").  LRN 184 was given the following route definition: "LRN 60 near Corona Del Mar to Santa Ana via Main Street" LRN 184 was announced in the April 1933 California Highways & Public Works .   LRN 184 appears for the first time on the  1934 Division of Highways Map .   LRN 184 appears under State Maintenance from US Route 101/LRN 2 in Santa Ana south ...