Pala road was constructed by 1930, although it was not paved east of Pala. The road that extended from US 101 in Oceanside all the way to SR 79 near Lake Henshaw was originally added to the state highway system in 1933, but was not designated as legislative Route 195 until 1935. By 1936, US 395 was signed along what would become SR 76 through Bonsall, as part of the route between Elsinore and San Diego. In 1943, work began on widening the approaches to the Bonsall bridge. US 395 had been shifted east away from Bonsall by 1949. SR 76 was signed by 1954. During the 1964 state highway renumbering, Route 195 was legally redesignated as State Route 76; at that time, the legal definition was updated to reflect the new designation of I-5, replacing US 101. Delays and postponement The original idea for constructing a replacement for Mission Avenue dates from 1950. By 1961, there were plans to make SR 76 a freeway from Oceanside to Fallbrook Road, and an expressway from there to US 395. The following year, the new Highway 76 Association formed a committee to promote the upgrade of the road into Pauma Valley. In 1963, more specific plans were proposed by the Highway Development Association initiative, including making the portions from Foussat Road and the Mission San Luis Rey de Francia and from Vista Way to Mission Road an expressway, and widening the part of the highway in Oceanside. In 1964, the state allocated funds for the widening of SR 76 to four lanes in Oceanside, and in October 1965, the first portion of the widening from Carey Road to Frontier Drive entered the bidding phase. The next part of the widening entered the bidding phase in December 1968, and extended from Frontier Drive to near the Mission. Caltrans engineer Jacob Dekema announced in April 1969 that construction on SR 76 and the nearby SR 78 between I-5 and US 395 would be delayed until work on I-5 and US 395 was underway, or at least until 1976. Nevertheless, a widening project was commissioned in 1970 between Pauma Reservation Road and Cole Grade Road, well east of US 395. The next year, construction began on a new interchange between the future routing of SR 76 and I-5, near Oceanside Harbor and Camp Del Mar in Camp Pendleton. The expansion of SR 76 appeared on