In April, the final breakthrough is expected in the second tube. At 57 kilometers long (35 miles), the Gotthard Base Tunnel will handily outstrip the 50-kilometer (31-mile) Channel Tunnel between ...

Following the interesting example of the £100mn HS2 bat tunnel (Report, November 8), I note that the cost of the proposed new Euston terminal, with six platforms, is currently estimated at £7 ...