Rochester N.Y.- Demolition begins today that will make way for a project that includes the area’s first Costco store.

 The former Monroe County Children’s Detention Center will be knocked down, making way for the CityGate development not far from the corner of East Henrietta and Westfall roads.

  Costco could open as soon as early October.

 Also word today that the developer involved is expected to make an announcement about the project Monday.