Invitation to tender for four cut-and-cover tunnels, all twin-tube with 130 sq m cross-section in claystone and siltstone, with lengths 124 m, 210 m, 220 m and 226 m and total value around $10 million. Engineering by Idom and Fulcrum. Start expected during 2001. Visit www.idom.es and www.fulcrum.es October 2000.
