Hong Kong West Drainage Tunnel (circa 2006)
Bouygues Construction built and handed over the Hong Kong West Drainage Tunnel, a stormwater interception tunnel on the western side of Hong Kong Island. The tunnel was part of Hong Kong's flood prevention infrastructure.
The tunnel reduced flood risk in the western districts of Hong Kong Island.
It established the 'stormwater interception in the upstream' approach that the East Drainage Tunnel now follows.
The same contractor, Bouygues, is now building the East Drainage Tunnel using the same concept, about 20 years later.
