 Three
Gorges Project, the Yangtze Three Gorges Water Control Project, is
located at Sandouping, Yichang, Hubei Province. The TGP will be built
in accordance with the scheme of “development in one cascade, construction
at one stroke, impoundment at stages and resettlement in succession”.
The concert gravity dam will be 3,035m long on the top, with the crest
at EL 185 meters. The designed normal pool level of the reservoir
is EL 175 meters, and the total storage capacity 39.3 billion m3.
The designed two powerhouses to be located on both sides of the spillway
have 26 units of generators of 700,000Kw each, with a total capacity
of 18.2 million Kw and an annual output of nearly 84.7 billion Kwh.
The designed One-way shipping capacity of the navigation facilities
is 50 million tons a year. The twin 5-flight ship lock can adequately
handle tows up to 10,000 tons. It is expected that the preparation
work and main works of the Project will take 2 years and 15 years
respectively. Owing to the construction of the Project, 1.13 million
people are expected to be resettled and 28,800 ha. Of farmland inundated.
When completed, the Project will be beneficial in ten aspects, including
flood control, power generation, navigation, aquaculture, tourism,
ecological protection, development-oriented resettlement, transferring
water supply and irrigation, which makes it a unique super power station
worldwide.
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 What
about the schedule |
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The
first period: To dam the main waterway of the Yangtze by the use of
Zhongbao Island and to build the canal, to build the coffer dams upstream
and downstream and begin the preparation of early-stage project. This
period is symbolized by the beginning in 1993 to damming the river
on November 8th, 1997. |
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The
second period: 1997—2003, from the damming by the canal in November
2002 to storing water on June 15th, 2003, the dam is to store water
gradually to 135 meters and keep it to 2006. The permanent navigating
is finished and be put into use, and the first generating unit on
the left bank is to generate power. |
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The
third period: 2003—2006, the dam is to store water to 156 meters in
September 2006, and the power plant workshop on the right bank. |
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The
forth period : 2006—2009, the dam is to store water to 175 meters
finally in 2009, and the whole project is to be completed. |
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How will the cruise ship navigate in 2003 ? |
Influenced
by the project, the cruise ship timetable in the Three Gorges is
divided as following periods: |
November
2002—April 9th , 2003 |
Contemporary
ship locks in use only: from November 2002 to April 9th , 2003, adding
up to 160 days, on change about the navigation on Chuan River. |
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April
10th, 2003—May 31st , 2003 |
The
contemporary ship locks are to be locked, but there is no change in
the water level and cruise ships navigate on the river upstream the
Dam. |
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June
1st, 2003—June 15th , 2003 |
In
these 15 days, the water level in the reservoir is to be raised from
66 meters to 135 meters. But no influence on the navigation, and cruise
ships navigate on the river upstream the Dam. |
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June
15th, 2003—September 2006 |
The
period of navigating through the permanent ship lock. Neither buses
nor boats are needed to transport the tourists in the course of cruising.
The navigation in the middle and lower reaches will be renewed, and
the waterway will be broadened the currency slowed, and the dangerous
shoals smoothened when the water level is raised to 135 meters. |
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