FLOOD CELL 2 BUTLEY MILLS BENEFIT COST RATIO (BCR) 3.1 *DATA REQUIRED FEATURES The area in the flood plain to be defined as all land below 5m contour which conforms to the EA’s definition of the floodplain. STATISTICS SOURCE OF DATA DATA REQUIRED/ACTION Location and Size At the top of the Butley Creek upstream of the road between Chillesford and Butley Mills 139 ha Alde and Ore Futures (AOF)/EA Homes and other properties Total number of residential properties Of which: Listed buildings Buildings in conservation area Holiday rentals 30 (value in excess of £2,700,000 as at 2009) None None 10 AOF/ EA Number of residential properties protected by existing defences 3 AOF/EA Number of other (non-residential) properties 21 AOF/EA Number of other (non-residential) properties protected by existing defences of which : Businesses: e.g. boatyards, Storage, farm buildings 14 Mill Lane B and B Butley Mills Studios Butley Mills Butley Barns Church Farm Stables, workshop, storage units, Dutch Barn 2 James Greenwell to confirm AOF/EA in all the above local knowledge may also be used Area of agricultural land inside flood cell of which: 77 ha AOF/EA
Agricultural Land Arable Grassland 25% 75% Surrounding land area irrigated by abstraction points inside flood cell 1. Land area irrigated by abstraction points inside flood cell (ha) 2. Land irrigated outside any flood cell from abstraction point within cell 3. Other economically useful land such as golf course, allotments 4. Recreation grounds some land may be irrigated from time to time such as to establish new grass seed in a dry season but crops are not regularly irrigated 479 ha +130 ACRES none n/a AOF/EA ESWAG Wildlife and Habitat FC2 Runs westerly from the head of the Butley River along the catchment area of the small stream that drains into the Butley River at Chillesford. The cell contains arable and wet grassland meadows, deciduous woodland and some freshwater lakes and reservoirs. The eastern boundary of the cell abuts the River Alde/Ore which is part of the network of the Alde/Ore/Butley Estuaries, a designated SAC (Special Area of Conservation) and contains habitats of conservation concern (see the more detailed description at Annex 1). The majority of the flood cell is not designated but some intertidal habitat in front of the defence is internationally designated and there is a small Country Wildlife site in the west of the flood cell managed by the RSPB. EA? NE? EA?NE? ANOB SWT Wild life survey 2012 ‘Ecological and Ore Estuaries’ See 2013 NVC SURVEY
Features dependent on the maintenance of the river walls 1. Footpaths a) along river walls (km) b) providing access to river walls but in floodable area 2. Allotments 3. Boatyards for building, repairs, winter storage 4. Public car parks 5. Sailing clubs 6. Utilities e.g. Sewage outlet (Anglian water, electricity station?) 7. Wildlife 8. Roads 9. River management and moorings 10. Employment: Jobs at risk if area is flooded 11. Other features to be invited in consultation in total 4Km 5km none none None none none Substation in Mill Lane * Mill Lane and Chillesford & Butley Streets and B1084 No RC Engineering + Butley Mill Studio AOF/ SCC Rights of Way Dept Local knowledge and SCC? Local Local Local knowledge Anglian, EON? SWT report Highways Dept? Crown Estates, sailing clubs, watermen Local knowledge Proposed Approach BLANK FOR OTHER COMMENTS Water Storage and Well points: Irrigation well point at Neutral Farm Irrigation ditches and draw points at Low Corner Irrigation well point at Church Farm Kemballs Reservoirs and irrigation well points to north of Padley Water Boreholes at Mill Bungalow, Butley for domestic use Question: Does the work building the banks at Butley Mills increase flooding in Chillesford? Water passing up the channel – Is there sufficient room on the road side to achieve the bank slop we require?