 Before the designation of SR 78 , a road known as the Brawley @-@ Westmorland @-@ Julian @-@ Oceanside Highway ( connecting Oceanside , Escondido , Ramona , Julian , Westmorland , and Brawley ) existed during the early twentieth century . This road roughly followed the current routing of SR 78 from Escondido to the east of Brawley , although it traveled along a different routing from Westmorland into Brawley . No road connected Brawley with Glamis in 1919 ; it was necessary to travel north through Calipatria to reach Blythe . East of the Sand Hills , there was a road from Glamis passing by Smith Well into Palo Verde , which roughly follows the routing of SR 78 . 
