A decision may be coming soon on the plan to open a mini-casino in Big Beaver. State officials could vote on Mount Airy Casino’s plan for the proposed Mount Airy Pittsburgh complex in the Castlebrook Development. The casino would have 750 slots, 30 table games, and three restaurants along with between 400-and-500 full-and-part-time jobs. If approved, it’ll take about 16 months to complete construction.