Liu To Bridge
Liu To Bridge is a bridge over the valley of Liu To, Tsing Yi Island, Hong Kong. It is part of Tsing Yi Road West. Built between 1985 and 1987, it spans and is a 3-span bridge with dual 2-lane road. The structure is numbered N547 by Hong Kong Government.
As Liu To is a steep-side valley, in order to avoid temporary work on the valley floor, twin prestressed concrete boxes were stacked incrementally during the construction to provide a short section across the valley.