Surface Water Management Plan - Hampshire County Council

significant issue. However, given the potential risk, this area will be putforward for further investigation to assess the risk in more detail and todetermine the feasibility of mitigation works.This area is also within the Environment Agency’s flood warning area of TheHamble Estuary which runs along the eastern border of the parish. This is arelatively rural area but any properties within the vicinity are advised to sign upto the Environment Agency’s flood warning service.The potential flood risk mapping does show a number of areas where therecould be a potential issue with future surface water flooding, the mostsignificant being around the Hamble railway station. Although these areas arenot known to suffer from flooding at present, it is recommended that any futuredevelopment takes this information into account and ensures sufficientdrainage and attenuation is provided.The recommendations for Hamble-Le-Rice are: Hampshire County Council as LLFA should raise awareness ofcoastal flooding issues and identify what measures can be taken toprotect properties Hampshire County Council as LLFA should lead the investigationinto the causes of flooding at Green Lane and Rope Walk andidentify potential mitigation options The Planning Authority should ensure that future developments takeinto account potential flood risk and do not increase runoff rateswithin these areas7.2.9. Hedge EndHedge End parish lies in the centre of Eastleigh Borough. It is bordered to thenorth by the main Portsmouth to London railway line and to the western edge,by the M27. The vast majority of this area is urban with the settlement ofHedge End a major area of expansion and population growth.There are several main rivers running through the parish including the MarlsRoad Stream and the Hedge End Stream to the south of the B3036, theWildern Stream and Shamblehurst Stream towards the centre of the parishand the Moorgreen Stream to the north, crossing the railway line. In additionto this, the Woodhouse gully, also a main river, crosses the M27 at junction 7.At present, there are few known problem areas within the parish of HedgeEnd. Flooding is known to occur in Moorgreen Road and is believed to be as aresult of the lack of capacity in the existing drainage system although thisshould be resolved as part of the school redevelopment in this area.There is also known to be flooding in the Upper Northam Drive area wheremaintenance of a watercourse is insufficient. Work has been carried out in thislocation to adjust the existing drainage systems allowing suitable maintenance21