The expansion project will be completed in three phases. San Manuel Casino Breaks Ground on Multi-Million ExpansionĬasino officials also said that the coronavirus pandemic and the delays in construction it has caused has forced them to push back the opening of the hotel and other planned new facilities to a later date. The San Manuel Band of Mission Indians last week celebrated an important milestone in the $550 million expansion of its San Manuel Casino resort in Highland, California.Ĭasino officials and staff members as well as tribal leaders and citizens attended on Friday a socially-distanced topping-off ceremony to place the final steel beam on top of the planned 17-story hotel tower that will be part of the existing casino complex.