Whether a wedding, non-profit gala, Mitzvah, Corporate or Trade event, the ballrooms size and flexibility lends itself to groups of all sizes and events of all types. Take a 3D tour of our venue spaces here! Our one-of-a-kind rental spaces are sought after for a range of celebrations and special event. PRIVATE DINING ROOM: 30 seated (long table), 32 seated (round tables) 40 reception.ft.) 432 seated with dance floor 504 reception ft.) 144 seated with dance floor 216 reception ft.) 216 seated with dance floor 288 reception /rebates/2frivers-casino-event-center-tickets2fvenue2f22772&. ENTIRE BALLROOM (HALLS A–C): (10,308 sq.The space is ideal for corporate and social events, with balcony access and stunning riverfront views. The Event Center is a multi-purpose, configurable space offering different room options to suit your needs. PITTSBURGH ApEffective April 4, Rivers Casino Pittsburgh’s maximum occupancy limit increases to 75 percent, as does the indoor dining capacity, per the governor’s March 15 announcement. The Event Center will leave your guests astounded. THIS APRIL, RIVERS CASINO PITTSBURGH MOVES TO 75 PERCENT CAPACITY AND OFFERS OTHER EVENTS AND PROMOTIONS.