(1) Except as provided in subsection (2), not more than 880 prisoners shall be housed at the Scott correctional facility and not more than 925 prisoners shall be housed at the western Wayne correctional facility.

  (2) If a new housing unit is constructed within the security perimeter of either facility listed in subsection (1), the capacity limits listed in subsection (1) for that facility are increased by the designated capacity of the new housing unit.