Workers stand on the Chengdu-Baoji railway bridge, whose support columns are protected against floating debris, as floodwaters from the Tangjiashan quake lake flow down the Fujiang River in Fucheng district of Mianyang, Sichuan Province June 10, 2008. Floodwaters crashed out of the dangerously unstable "quake lake" in southwest China on Tuesday after soldiers blasted open a sluice, significantly easing the threat of disaster for hundreds of thousands of people downstream. REUTERS/Jason Lee (CHINA)