Sciences, and San Diego Evening Junior College. City College continued to grow during the 1950s and 60s as land was acquired to allow expansion through various blocks of today's northeast Downtown San Diego. In 1964, San Diego Mesa College was opened to 1,800 students. Five years later, in 1969, San Diego Miramar College opened on 140 acres in what was then undeveloped land north of the Miramar Naval Air Station, now known as Mira Mesa. Unlike City and Mesa Colleges which offered a wide range of general education classes, Miramar College began by concentrating on law enforcement and fire science training. It has since broadened its curriculum to include the general education college courses needed by students in the rapidly growing northern area of the city, as well as new transfer and vocational programs. In November 1972, the voters approved separating the San Diego Community College District from the San Diego Unified School District. The first election of community college district trustees was held in November 1973. The year 1976 brought the opening of a unique district campus, the Educational Cultural Complex, dedicated to offering both college and continuing education classes to the multicultural population surrounding its Ocean View Boulevard site. In 1979-80 the administration of the Evening College program was merged with those of the day college programs at San Diego City, San Diego Mesa, and San Diego Miramar Colleges. With both college and Continuing Education programs, as well as extensive educational programs at military bases across the nation, the San Diego Community College District became second-largest community college district in California. Recent times All campuses have receive extensive expansion and renovations in the last 20 years: At City College, Propositions S and N-funded projects for the 60-acre City College have included six new instructional and career training facilities, eight major renovations, and new parking, public safety, and infrastructure projects. Construction for a new Child Development Center is underway with an estimated completion date of Summer 2020. The building consists of new spaces for child care from infant, toddler and pre-K with unique play areas for the different age groups, along with observation rooms for students in the child development program. Recently, a major renovation was completed for the A and T buildings on campus, providing a complete interior transformation of both buildings, new technology, new finishes, extensive new hardscape to create, for the first time in the campus’