Work No. 17L—U.K.A realignment of Harringe Lane, including a bridge over the railway (Work No. 17) and the Ashford and Folkestone Railway in place of the existing bridge carrying that road over that railway, commencing in that road at a point 50 metres north of the northern end of the bridge carrying that road over the M20, passing southwards over the motorway and over the two railways and terminating in Harringe Lane at a point 50 metres north of the bridge carrying that road over the East Stour River;