Stuff members stand at the edge of Dujiangyan Dam after the 43-day dredging and maintenance work in southwest China's Sichuan Province December 25, 2002.
Dujiangyan Dam, built 2250 years ago, is the oldest water conservation project and still functioning irrigation scheme in the world.
Stuff members stand at the edge of Dujiangyan Dam after the 43-day dredging and maintenance work in southwest China's Sichuan Province December 25, 2002.
