Patrick Dougherty's sculpture of woven branches on the College Green was destroyed in March when a blustery gale sent a nearby elm tree crashing down on it. Dougherty's installation, which was erected in the fall of 2006, was a series of giant boxes whose walls were made of maple and willow branches laced together by the artist as if he were making a basket. The work cost the University $14,000, but Dougherty had always said the installation would only last as long as Mother Nature permitted.