Central School, which served students in Pennsauken for more than eight decades before being closed in 2007 is set to be demolished by the district. Mold and air-quality problems along with structural damage ultimately shuttered the school at Merchantville and Madison avenues. Saving the 45,000-square-foot structure was deemed to be a lost cause. Demolition bids will be opened and read by the township’s Board of Education May 15.