Restoration of Naka River and Ayase River (Tokyo)

For Ayase River, which was recorded as the worst river in terms of water quality for 15 consecutive years, a project was conducted to channel the water of Ara River upstream as part of "Limpid Stream Renaissance II" (a water environment improvement emergency action plan). This project won the Japan Society of Civil Engineers' Environmental Award in 2001 as Japan's first project using the tunnel upper part for subways and the lower part for a river water conduit.

By JRRN-secre | Category: Water quality Restoration,Kanto | Comment(0) | Trackback(0) |
Date: 2011.09.10 18:18