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HOME > FLOOD CONTROL |
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- To reduce flood damages, water is retained in the reservoirs and the water level of the rivers are lowered during heavy rainfall season, while in low rainfall season, water in these reservoirs is released to maintain water-plentiful, affluent river.


Dam | Gross Reservoir Storage(million ㎥) |
Flood Control Storage (million ㎥) |
Water level (El.m) | |
---|---|---|---|---|
Flood Level | Flood Water Levelin Flood Season | |||
Soyanggang | 2,900 | 770 | 198.0 | 185.5 |
Chungju | 2,750 | 616 | 145.0 | 138.0 |
Hwacheon | 1,018 | 213 | 181.0 | 175.0 |
Hwengseung | 87 | 10 | 180.0 | 175.0 |
Sum | 6,755 | 1,609 |

Dam ㎥ Flood Event |
Soyanggang Dam | Chungju Dam | ||||
---|---|---|---|---|---|---|
Max. Inflow Rate(㎥/s) |
Outflow Rate (㎥/s) |
Control Ratio(%) |
Max. Inflow Rate(㎥/s) |
Outflow Rate (㎥/s) |
Control Ratio(%) |
|
Sept. 11, 1990 | 10, 650 11th 15:00 |
5,675 12th 2:00 |
47 | 22,164 12th 1:00 |
14,000 12th 12:00 |
37 |
Aug. 25, 1995 | 5,624 24th 16:00 |
3,532 25th 20:00 |
37 | 10,800 25th 16:00 |
8,526 26th 10:00 |
21 |
The higher control ratio means the more successful flood control.