Work No. 12D—U.K.Diversion of Henhurst Road, including a bridge over the railways (Works Nos. 12, 12A and 12B), commencing in that road at a point 40 metres south of its junction with the exit slip road from the westbound carriageway of the A2 and terminating in Henhurst Road at a point 60 metres north of the access from that road to Henhurst Cottage;