By Cresswell McCoy WATCH RELATED VIDEO Submit RAINIER, OR - MAY 21: The 499 ft Trojan Cooling Tower begins to implode as 2,792 pounds of dynamite detonate in the tower beside the Columbia River May 21, 2006 in Rainier, Oregon. Portland General Electric's Trojan Nuclear Power Plant is the first large scale commercial nuclear plant to be decommissioned in the U.S. Advertisement © 2017 HNGN, All rights reserved. Do not reproduce without permission. Advertisement 0 COMMENTS CLOSE COMMENT Get HNGN's Top Stories Newsletter Everyweek You have already subscribed. Thank you.