Work crews on Friday launched the demolition of Largo High, ending an era that began when the school opened in 1957. After two months of tearing down, construction will begin on a new $55 million campus. The two-year project has been on the Pinellas school district's to-do list for years. The old facility was plagued by failing systems, bad drainage and poor layout. Renderings released this week by Harvard Jolly, the St. Petersburg architectural firm, show a "collegiate feel," with a cluster of two-story buildings enclosing a courtyard. During construction the school will operate out of about 50 portable classrooms. "On the one hand it's sad to see this institution change, these brick walls come down," said Largo High teacher Allison Bryant. "But … it's going to be so exciting to have a new school — something that's just a shining pillar of this community."