Discovery Channel had a series, Building the Future, also touching on the South-North Water Diversion Project in China, and the Edogawa Project in Japan. More information
here.
South-North
Water Diversion Project (Beijing, China) (#1)
Beijing, with a population
that has swelled to nearly 15 million people, is struggling with an
increasingly dire water shortage worsened by 30 years of drought. The Chinese
government's answer is the largest water diversion undertaking ever. First
envisioned by Mao Zedong in the early 1950s but not begun until 2002, the
project will transport 300 million gallons of water each day from the Yangtze
River in southern China to the parched, populous north via three concrete
rivers, each nearly 1,000 miles long. (The most difficult part of the project
will be the western route, which will require construction on the Qinghai-Tibet
Plateau, at 10,000 to 16,000 feet above sea level.) Plans call for the project
to be completed by 2050 at a cost of $62 billion. But whether it will be enough
to alleviate China's water woes is a difficult question. Experts say that even
with the extra water, the Chinese capital will have to dramatically reduce
average household water consumption just to keep up with population growth.
Another problem: pollution from China's rapidly growing industrial sector
threatens to make the diverted water unfit to drink.
Edogawa
River Project (Tokyo, Japan) (#2)
With Tokyo in the
path of as many as two dozen typhoons each year, the city and its 12 million
inhabitants are continually endangered by flooding. The answer: one of the most
massive pumping systems ever constructed. Begun in 1992, with completion
scheduled for 2009, the $2 billion system includes a four-mile-long network of
tunnels connected to an 83-foot-tall storage tank and a cathedral-like
structure of 59 massive pillars. The system's powerful turbines can pump 200
tons of water into the Edogawa River each second. The system has become a Tokyo
tourist attraction, and it also has been used by television and movie crews as
an eerily dramatic backdrop.