Work No. 8G—U.K.A railway (1,330 metres in length), forming a connection between the Tilbury Loop Railway and the eastbound line of the railway (Work No. 8), commencing by a junction with the Tilbury Loop Railway 10 metres east of the eastern end of Dagenham Dock Station, passing eastwards on the southern side of that line under Kent Avenue (Work No. 8Q) and Thames Avenue (Work No. 8R), over the Beam River and terminating by a junction with Work No. 8 at a point 215 metres east of the intended Thames Avenue bridge (Work No. 8R), including a bridge over the Beam River;