Strategic Flood Risk Assessment - South Worcestershire ...

earth embankment, flood wall and floodgates across New Street. Additionally a floodwall was constructed in the Waterside area. The scheme protects 64 properties to a 1 in150 year chance of flooding in any given year.Powick: Completed November 2011. Scheme consists of the construction of two floodembankments, providing protection from a flood with a 1 in 75 chance of occurring in anyone year.Kempsey: Completed July 2012. Scheme consists of a 180m long earth embankmentconstructed downstream of the village to stop flooding from the River Severn.Additionally a large culvert and automated penstock allows Hatfield brook to flow freelyinto the River Severn in periods of low flow. Pumps are in place to discharge surfacewater and water from Hatfield Brook to the other side of the embankment when thepenstock is closed. The scheme provides protection to a 1 in 100 chance of a floodoccurring in one year.Riddings Brook, Wribbenhall: Completed in 2011. Scheme consists of a 200m earthbund.Uckinghall: Completed 2011. Scheme consists of an earth embankment, flood wall,pumping station, and highway alterations at Ferry Lane including a flood gate. Thescheme provides protection to a 1 in 100 chance of flooding in any one year.3.4 Severn Catchment Flood Management PlanThe Severn Catchment Flood Management Plan (CFMP) was published in September 2008.There are six pre-defined national policies provided in the CFMP guidance and these are appliedto specific locations through the identification of ‘Policy Units’. These policies are intended tocover the full range of long term flood risk management options in the catchment that can beapplied to different locations. The six national policies are:1. No active intervention (including flood warning and maintenance). Continue to monitorand advise2. Reducing existing flood risk management actions3. Continue with existing or alternative actions to manage flood risk at the current level4. Take further action to sustain the current level of flood risk5. Take action to reduce flood risk (now and/or in the future)6. Take action to increase the frequency of flooding to deliver benefits locally or elsewhereThe Severn CFMP is divided into nine sub areas which have respectively been allocated one ofthe six generic flood risk management policies 11 . Table 3-1 lists the CFMP sub areas andpolicies relevant to the South Worcestershire area.Table 3-1: Severn CFMP policies in the South Worcestershire areaCFMP Sub area Policy PrioritiesSub area 4:Middle Severn CorridorSub area 8:Middle Avon, Tributaries,Arrow and Alne,Redditch, Rugby andTemePolicy 4Policy 3No increase in flood risk due to developmentSet a framework to deliver a sustainable approach toflood risk management that considers the naturalfunctions of the river and reduces long termdependence on raised defencesMaintain existing flood warning areas and improveeffectiveness and coveragePromote SUDS for new developmentMaintain existing Flood Watch area of Lower AvonMaintain existing Flood Watch area of River TemeSafeguard floodplainsPromote SUDS2012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.doc 20