The first section of the San Diego Freeway in San Diego (US 101 at the time) to be constructed was the Mission Bay Bypass in 1954. Elements of this construction can still be seen today, such as some older curbing at the intersection of Damon Ave and Santa Fe St. North and south of this small section of freeway, it was still a narrower four-lane roadway with some expressway sections. Between 1966 (north) and 1969 (south), the adjacent sections were constructed, completing I-5 in the City of San Diego.
