Farnworth Tunnels

Contract Works:

- Specialist Labour Supply, Tunnel strengthening and shotcrete lining of ‘Down’ tunnel.

- Specialist Labour Supply, Enlargement of ‘Up’ tunnel using 8.800m OD double road header TBM.

- Strengthening of ‘Down’ tunnel using reinforcing mesh, steel rib arches and a sprayed concrete lining. All of the strengthening works were undertaken during weekend possessions.

- Construction of launch and reception pits and associated portals.

- Re-boring of ‘Up’ tunnel using a 8.800m OD open face shield to construct a 270m long 8.000m ID segmentally lined tunnel.

- Works undertaken as part of the electrification of the Manchester to Bolton line.