Anglian Water Services require 4.9 km tunnel at depths of between 20 m and 47 m through difficult ground including the Upper Chalk bed which is saturated at up to 2 bar and has flint bands, glacial materials and sarsen stones with compressive strength up to 150 MPa. £26 million contract awarded to AMEC Tunnelling who will use new Lovat RME115SE 2.44 m-diameter EPB with mixed-face cutterhead powered by six hydraulic motors rated at 263 kW. Six-segment gasketted trapezoidal lining supplied by Buchan. 20 m/day expected. 11 shafts to be sunk down to maximum 50 m depth. September 1998.

  $300 million scheme for Hyder Welsh Water comprising 2.6 km of 2.44 m-diameter tunnels, 3.5 km of 1.95 m, and 3.7 km of 1.6 m in waterbearing mudstone, siltstone and sandstone using Herrenknecht EPB for the large diameter and AVN 2000D and AVN 1600D pipejacked machines for the smaller diameters. 20 access shafts ranging in internal diameter from 6.1 m to 7.62 m with precast concrete linings supplied by Tarmac Charcon and a 20 m-diameter, 40 m-deep pumping station. Shaftwork commenced December, 1997. Partnering agreement involves Welsh Water, Hyder Consulting, Laing Civil Engineering, Van Oord, and Byzack, with the latter handling the tunnelling. Completion 1999. June 1998.