The South Island Line (East) is a medium-capacity railway covering approximately 7 kilometres from Admiralty Station to South Horizons in Ap Lei Chau, with intermediate stations at Ocean Park, Wong Chuk Hang and Lei Tung.
In a joint venture contract, we were responsible for constructing two underground stations at Lei Tung and South Horizons, 1.1 kilometres of tunnels and related plant and ventilation buildings. The new station at Lei Tung was constructed by drilling and blasting and included two pedestrian access adits and a vertical shaft. The one at South Horizons is built using cut-and-cover construction methods. There are also 1.1 kilometres of drill-and-blast tunnelling, 200 metres of cut-and-cover tunnelling, access adit construction and two rock slopes that need to be cut to construct plant and ventilation buildings. We erected a temporary traffic deck at the South Horizons Station to maintain the operation of the public transport interchange while work continued below.