Portsmouth voters overwhelmingly approved the casino development by referendum in November 2020. Rush Street Gaming, owners, and operators of the casino, broke ground back in December 2021. The Virginia Lottery Board unanimously approved a casino operator’s license for Rivers Casino Portsmouth on Nov. The casino is part of a planned Entertainment District along Victory Boulevard - just south of I-264. PORTSMOUTH, Va.-November 21, 2022- Rivers Casino Portsmouth officials today announced the $340 million gaming and entertainment venue will open its doors to the public on Sunday, Jan.