Work No. 6D—U.K.A railway (1,032 metres in length) commencing in the existing Traction Maintenance Depot at a point 25 metres south-west of the south-western corner of the diesel repair shed in that depot, passing north-eastwards and northwards, then north-westwards on the western side of the Lea Valley Line to a junction with that railway 60 metres south of the bridge carrying Temple Mill Lane over that railway, passing under that bridge, then continuing on the eastern side of the Lea Valley Line and terminating by a junction with the railway (Work No. 6E) at a point 390 metres north of that bridge;