 A road from Julian to Kane Springs was completed in 1925 . Efforts to include this road extending to Brawley into the state highway system date back from 1927 , in order to receive state funding for the road . Plans for a cross @-@ country road through Borrego Springs were being discussed by county government officials in 1927 , as there were no east – west state highways in between Mountain Springs and Riverside . Those living in Calipatria and Westmorland supported the prospect of the road to Julian being improved , and included in the state highway system . In 1928 , state assembly member Myron Witter wrote a letter to the San Diego County Board of Supervisors to suggest that the highway be incorporated as a second entrance to the county from the east , and that it would not detract from the progress of the other highway from El Centro ; however , the county wanted to prioritize the paving over the designation . Chambers of commerce in the Imperial Valley generally agreed with Witter , proposing that the El Centro – Calexico road be made a part of the state highway system , and the Kane Springs – Julian road be given second priority for inclusion . 
