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Basis of the plan |
![](./images/history/jim.jpg) |
A space large enough for the stream was secured not to cause flood relying on the data collected in the past 200 years about local torrential rain. |
![](./images/history/jim.jpg) |
Considering the Cheonggyecheon as being a stream in a city, the height of overhead clearance has been applied relying on the rate of 1950~1980.
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![](./images/history/jim.jpg) |
Design criteria - Starting point ~ Point of joining the Seongbukcheon(Stream): Local stream Grade-II (Design made relying on the data collected in the past 50 years) - Point of joining with the Seongbukcheon ~ Point of joining with the Jungnangcheon (Stream): Local stream Grade-I (Design made based on the data collected in the past 80 years)
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Flood water level |
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Major measurements of the stream |
![](./images/history/jim.jpg) |
Width: 19~13m |
![](./images/history/jim.jpg) |
Low water channel width: 6~72m |
![](./images/history/jim.jpg) |
Width of terrace spaces on both sides of the stream: 2~27m |
![](./images/history/jim.jpg) |
Height of terrace spaces on both sides of the stream: 3~7m |
![](./images/history/jim.jpg) |
Height of low-water terrace spaces: 1~3.7m |
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Frequency of inundation |
![](./images/history/jim.jpg) |
In the case of terrace spaces on both sides of the stream: 3 times in a year |
![](./images/history/jim.jpg) |
In the case of low-water terrace spaces: 10 times in a year |
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