Work No. 18B—U.K.A railway (4,400 metres in length) commencing by a junction with the railway (Work No. 17) at its termination, passing eastwards on the northern side of the Ashford and Folkestone Railway, under Sandling Road (Work No. 18H), then over the Saltwood Tunnel on that railway, continuing on the southern side of that railway and the Dollands Moor Freight Yard, over the railway (Work No. 18E), under the B2065 (Hythe Road) (Work No. 18J), on existing bridges over the M20 and the A20 and terminating by a junction with the Eurotunnel Railway at a point 570 metres east of the eastern end of the bridge carrying that railway over the A20, including a bridge over Work No. 18E;