The restoration project required the removal of 70,000 tons of concrete from the former elevated expressway.
The stream’s water level is maintained by a specialized filtration and pumping system that circulates water from the Han River.
During the Joseon Dynasty, the stream served as the primary drainage system for the city but was paved over during the rapid industrialization of the 1960s and 70s.
The 22 bridges crossing the stream serve as a historical timeline, featuring designs that range from traditional patterns to futuristic steel structures.
Environmental data shows the area has significantly reduced the 'heat island' effect in central Seoul by up to 5 degrees Celsius.
The project was highly controversial during its 2003-2005 construction due to the displacement of street vendors and concerns about gentrification.
A wall mural titled 'Wall of Hope' spans a significant section, created from over 20,000 tiles painted by local residents and international visitors.
Cheonggyecheon is an 8.4-kilometer-long urban renewal project that transformed a concrete-covered highway into a sunken recreational stream flowing through downtown Seoul. The project reclaimed the historic waterway by uncovering the stream and incorporating pedestrian walkways, bridges, and public art installations below street level. It serves as a cooling microclimate zone, consistently measuring several degrees lower than the surrounding city pavement during summer. The restoration required the removal of an elevated highway and the demolition of a massive overpass that spanned the city center. The path is divided into sections, starting near Cheonggye Plaza and extending toward the Han River. It features 22 bridges, each designed with unique architectural characteristics reflecting the area's history or modern aesthetics. The stream bed is artificially supplemented by pumping water from the Han River to ensure a constant flow despite seasonal droughts. It hosts various cultural events, including the Seoul Lantern Festival, which uses the stream as a focal point for light displays. The area functions as a vital pedestrian corridor connecting the historic Jongno District with emerging commercial hubs.
The Candle Fountain at the Cheonggye Plaza entrance, especially at night.
Enter at the Gwangtonggyo Bridge area for the best balance of historic ruins and modern city views.
Walk the path during the evening when the overhead city lights and the stream's under-bridge lighting create a distinct urban atmosphere.
Bring comfortable walking shoes, as the path involves stairs and stone stepping blocks that are uneven.
Avoid the middle sections during peak midday summer heat, as there is limited shade cover.
The area is open 24/7, but specific festival light installations typically operate only in the evening.
Avoid wading or splashing in the water to maintain water quality; keep to the right on pedestrian paths.
