sentences:  However, the Strategic Flood Risk Assessment prepared for Rochford District Council includes a map of the tributaries of the Roach, on which the third stream is called Noblesgreen Ditch, and parts of the fourth stream are called the Hawkwell Brook and River Roach.This usage has been followed here.Noblesgreen Ditch rises in the hill near The Gattens and Nelson Road, which are either side of Hockley Road, Rayleigh.