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Cheonggyecheon river history and restoration
- Cheonggyecheon river history and restoration
- Seoul Metropolitan Government
| Title |
Cheonggyecheon river history and restoration
Similar Titles
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| Material Type | Video |
| Publisher |
[Seoul, South Korea] : Seoul Metropolitan Government |
| Date | 2014-11 |
| Subject Country | South Korea(Asia and Pacific) |
| Language | English |
| File Type | Link |
| Subject | Territorial Development < National Land Development Territorial Development < Environment |
| Holding | Youtube |
| License |  |
Abstract
A complex, expensive greenway was constructed in Seoul, Korea. It spanned the city and involved removing an expressway yet was completed in 2-1/2 years. Provides flood protection for up to a 200-year flood event and can sustain a flow rate of 118mm/hr. Increased overall biodiversity by 639% between the pre-restoration work in 2003 and the end of 2008 with the number of plant species increasing from 62 to 308, fish species from 4 to 25, bird species from 6 to 36, aquatic invertebrate species from 5 to 53, insect species from 15 to 192, mammals from 2 to 4, and amphibians from 4 to 8. Reduces the urban heat island effect with temperatures along the stream 3.3° to 5.9°C cooler than on a parallel road 4-7 blocks away. This results from the removal of the paved expressway, the cooling effect of the stream, increased vegetation, reduction in auto trips, and a 2.2-7.8% increase in wind speeds moving through the corridor.
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