We were engaged by HyD for 3 packages for the retrofitting of noise barriers on Castle Peak Road (Ping Shan Section), San Tin Highway & Jockey Club Road and San Wan Road near Fanling Wai. Scope of works include the design and construction of 7.1m high cantilever noise barriers of about 550m in length, 3m high vertical noise barriers of about 1,010m in length and 5m high vertical noise barriers of about 2,600m in length.