TWC NEWS VIDEO:  CHAUTAUQUA, NY -- Construction crews working on the new Chautauqua Institution Amphitheater continue to race against the clock.  

Over the past 2 weeks giant cranes have been erecting the steel trusses that make up the main roof structure.  Workers have also begun enclosing the back of house.  Officials say they will begin pouring concrete and doing the interior work once it's all sheltered from the weather.  It's scheduled to be completed before the summer season starts in late June.