Facing a possible zeroing out of the state funds that keep it afloat, the South Jersey Performing Arts Center located on Camden’s waterfront has announced plans to shut down by June 30. The SJPAC was to be the crown jewel in Camden’s civic rebirth, but the plan has fallen far short of expectations, with the city continuing to struggle, and the arts center never attracting the audiences organizers had hoped for. The center, on the Delaware River just across from Philadelphia, has been open for nine years.