Pedzisa mutsara unotevera: Kuvakwa kwokutanga kweRaibhurari yeOviatt kwakaitwa muzvikamu zviviri. Chikamu chokutanga chakavhurwa pana October 24, 1973. Yechipiri, yakapedzwa muna 1991, yakapetwa kaviri kukura kwayo nemapapiro okuwedzera kumabvazuva nokumadokero. Zvikamu zvose zviri zviviri zvakagadzirwa nomugadziri wezvivako Leo A. Daly. Nhamba
Kudengenyeka kwapasi kwa1994 kweNorthridge kwakakuvadza zvikuru chivako chakamanikidza raibhurari kuvhara. "Chivako chokutanga chechikamu chokutanga" chakavhurwazve gare gare muna 1994. 'Mapapiro echikamu chechipiri' aida kuputswa uye kuvakazve, uye akavhurwazve muna 2000.