Beacon Hill Tunnels and Station Central Link Light Rail System Contract RTA/LR 105-03; C710
Construct twin 4,300' x 21' bore, 18'10" ID soft ground EPBM tunnels and a SEM/ NATM mined station. The 400' long station will require two shafts, 180' deep by 50' and 30' dia, and various adits. Portals are cut & cover/open cut structures, cross passages are hand mined. Also construct 1,800' of twin-track precast concrete beam aerial guideway and 3-story high, 400' long station. All trackwork and station finishes. LRT system.