|Image: Frame house along Seikei-Sen (Cheonggyecheon), circa 1910-1945 via Wikimedia Commons (source)|
Cheonggyechon Stream in downtown Seoul was a free-flowing waterway before it was decked between 1958 and 1977 then topped with a freeway between 1967 and 1977.
|Image: Seoul elevated freeway and decking above Cheonggyecheon Stream, 2003 via LAF (source)|
|Image: Cheonggyecheon Streambed restoration, June 24, 2005 via Erik Möller (source)|
The elevated freeway and concrete deck covering the Cheonggyechon Stream in downtown Seoul was removed in beginning in 2003. The project was initiated by former Mayor Lee Myung-bak. The 5.8 km stream restoration and infrastructure project was completed in 2005. The photograph, above, was taken from a bridge, shown below, looking west.
Cheonggyechon Stream Restoration Project Case Study [Landscape Architecture Foundation]
Cheong Gye Cheon Restoration Project [ICLEI World Congress]