Tag: flood

China and the Cascading Geopolitics of Lower Mekong Dams

(May 10, 2011) Much has been written on the downstream impact of China’s dams on the Lancang-Mekong River, which flows through or along the borders of five other countries after exiting China. Most of the discussion relates to the hydrological impact of impounding water in the eight dams along the mainstream Lancang Jiang in Yunnan Province.

Danger Pent Up Behind Aging Dams

(February 21, 2011) Aging dams have become a growing problem in the United States, and a potential threat to downstream populations. Besides the perils of elderly infrastructure, putting off repairs due to belt-tightening in a time of recession can aggravate lurking dangers from internal erosion, over-topping, and earthquakes.

Flood closes down Yangtze Three Gorges ship lock

(July 30, 2007) The Yangtze River Three Gorges Navigational Bureau halted two-way traffic at the Three Gorges ship lock earlier this month as water influx into the dam measured an alarming 51,000 cubic meters per second, a result of continuous rainfall in the upper reaches. The lock, 6.4 km long and costing RMB ¥6.2 billion (USD $810 million), was built into the mountainous terrain on the northern bank of the Yangtze and has been the only navigable route past the dam since 2003.