 Both high schools opened their doors in September 1965, with the Victoria site keeping the traditional name of Riverside Polytechnic High School.Since that time, Poly High School classes have taken place on the present site.Riverside Polytechnic High School is home to one of the original, still active Army Junior Reserve Officers' Training Corps (JROTC) units, established in 1917 and was originally called the Poly High Cadet Corps.