Work No. 32B—U.K.A road, forming an exit slip road from the westbound carriageway of the A2 (Work No. 31B), commencing by a junction with the C492 at a point 150 metres south-west of the existing junction of Brewers Road with that road, passing northwards, then north-eastwards over the railway (Work No. 12) in tunnel, and terminating by a junction with that carriageway at a point 20 metres west of the said bridge over the A2, including a roundabout at the junction of the slip road with Brewers Road (Work No. 32C);