Andong multipurpose dam which stands 483 meters
high and is 612 meters long is classified as a fill
type dam with a clay corezone. It has the total
fill volume of 4.0 million ton and is equipped with
a pumped storage power plant of 90 MW, the first
of its kind in Korea. The re-regulation weir constructed
3km downstream of the main dam is 20 meters high
and 218 meters long. This dam is located at 4km
north-eastern direction from the city of Andong
and 340km upstream from the estuary of the Nakdong
river which is the second largest river in south
Korea.
Nakdong river that meanders through the south-eastern
region of this country is 512km long Because of
flood damage and lack of water, development of a
large capacity reservoir was absolutely required
at that time. Construction of Andong dam was initiated
in 1971 and completed in 1976.
It provides annually 300 million ton of irrigation
water to the downstream agricultuaral area of 44,000
ha, and 450million ton of municipal and industrial
water to a lot of municipalities including the metropolitan
cities of Busan and Daegu. It also provides 158
million kWh of hydropower energy. Specially, in
the construction of the main dam granitedoil was
used as core materials instead of clay which was
difficult to procure within the construction area.
It resulted in costdowning and shortening of construction
period.
•
Hydropower Plant
- Commercial operation : since Oct
. 11, 1976
- Installed capacity : 90 MW (2 units
of 45 MW)
- Annual average hydropower generation
: 158 million kWh
- The first installed combined pumped storage
hydropower plant in Korea : Andong hydroelectric
plant is a combined power plant that can power
and pump using the same hydraulic turbine
