Flood Risk for Employment Sites the Information Below Provides a Factual Account of the Flood Risk at 7 Employment Sites (Site 441, 1031, 160, 001, 462, 013 & 149)
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Flood risk for employment sites The information below provides a factual account of the flood risk at 7 employment sites (Site 441, 1031, 160, 001, 462, 013 & 149). Legend © Crown Copyright and database rights 2020. Ordnance Survey 100024198 Site 441 - Land at Site 1031 - West Moor Park, Site 160 - Thorne South Urban Site 001 - Junction 6 M18, Site 462 – Adwick Site 013 - West Moor Park Site 149 – Nutwell South, Armthorpe Carcroft Common, East (EA EMD Area) Extension, Bradholme Farm, Thorne North Lane, Carcroft North (EA EMD Area) Carcroft Thorne (EA Yorkshire Area) (EA Yorkshire Area) (EA EMD Area) (EA Yorkshire (EA EMD Area) Area) Strategic Level Assessment Flood Zone 100% flood zone 3 Approximately 40% flood Approximately 100% flood zone 3 Approximately 92% 100% flood zone 3 Approximately 71% flood zone 3 zone 3 93% flood zone 3 flood zone 3 14% flood zone 2 8% flood zone 2 7% flood zone 2 8% flood zone 2 15% flood zone 1 52% flood zone 1 (Approximately 5-10% of the site is also shown to be within Flood Zone 3b the Functional Floodplain of the South Soak Drain) In an Area Benefitting from Yes No No Yes No No No Defences Flood Events The EA holds no records of previous flood events at this site. March 1947 February 2020 (local June 2007 March 1947 February 2020 (local February 2020 (local drainage/surface Autumn 2000 drainage/surface water Autumn 2000 drainage/surface water water flooding) June 2007 flooding) June 2007 flooding) November 2019 November 2019 (local (local drainage/surface drainage/surface water flooding) water flooding) Covered by a Flood Warning Yes No Yes Yes Yes No No Area Site Specific Flood Risk Assessment Residual Breach Risk These maps are based on computer modelling of simulated breaches at intervals at certain points on Main Rivers. Each breach has been modelled individually. Multiple breaches, other combinations of breaches, different sized flood flows may all give different results. These maps show the level of flood hazard to people (called a hazard rating) if our flood defences are breached at certain locations, for a range of scenarios. The hazard rating depends on the depth and velocity of floodwater across the floodplain. These maps only consider the consequences of a breach, it does not make any assumption about the likelihood of a breach occurring. Our defences generally provide a good standard of protection but a risk of breaching remains. Please note: Although modelled residual risk mapping is not available for all the sites the SFRA does define the residual risk areas and the required mitigation as detailed below. This information can be found on the SFRA Interactive Map Site 441 - Land at Site 1031 - West Moor Park, Site 160 - Thorne South Urban Site 001 - Junction 6 M18, Site 462 – Adwick Site 013 - West Moor Park Site 149 – Nutwell South, Armthorpe Carcroft Common, East (EA EMD Area) Extension, Bradholme Farm, Thorne North Lane, Carcroft North (EA EMD Area) Carcroft Thorne (EA Yorkshire Area) (EA Yorkshire Area) (EA EMD Area) (EA Yorkshire (EA EMD Area) Area) Residual Breach Risk - Upper Humber Upper Humber Breach Upper Humber Breach 1% (1 in Upper Humber Breach 1% Upper Humber Breach Upper Humber Breach Model Upper Humber Breach Model Not Depth on site (m) Breach Model Not Model Not available – does 100) Breach (1 in 100) Breach Model Not available – Not available – does not cover available – does not cover this area available – does not cover this area does not cover this this area not cover this area Between 0m – 2m Between 1m – 2m+ area Residual Flood Residual Flood Risk Zones Residual Flood Risk Zones Residual Flood Risk Zones Residual Flood Risk Residual Flood Risk Zones Residual Flood Risk Zones defined Risk Zones defined defined within the SFRA defined within the SFRA defined within the SFRA Zones defined within defined within the SFRA within the SFRA within the SFRA the SFRA The site is at residual risk The site is at residual risk from The site is at residual risk The site is at residual risk from The site is at residual risk from the Isle The site is within from the Isle of Axholme. the Isle of Axholme. This is from the Isle of Axholme. The site is within 1947 the Isle of Axholme. This is of Axholme. This is defined in the 1947 and 2007 This is defined in the Level 1 defined in the Level 1 SFRA This is defined in the Level 1 and 2007 historical defined in the Level 1 SFRA Level 1 SFRA section 6.4.1 Residual historical flood SFRA section 6.4.1 Residual section 6.4.1 Residual Flood SFRA section 6.4.1 Residual flood area: section 6.4.1 Residual Flood Flood Risk Zone and Planning Advice. area: Flood Risk Zone and Risk Zone and Planning Advice. Flood Risk Zone and Risk Zone and Planning Planning Advice. Planning Advice. The SFRA states Advice. It states: The SFRA states It states: developments should developments It states: It states: have floor levels set It states: Isle of Axholme (IOA) – the SFRA for should have floor Isle of Axholme (IOA) – the higher than the North & North East Lincolnshire 2011 levels set higher Isle of Axholme (IOA) – the SFRA for North & North East Isle of Axholme (IOA) – the recorded flood level, Isle of Axholme (IOA) – the advises that the critical flood level is 4.1 than the recorded SFRA for North & North East Lincolnshire 2011 advises that SFRA for North & North East and no lower than 5 m SFRA for North & North East m AOD. The EA has agreed with flood level, and no Lincolnshire 2011 advises the critical flood level is 4.1 m Lincolnshire 2011 advises AOD. This restriction Lincolnshire 2011 advises that Doncaster LPA on the following lower than 5 m that the critical flood level is AOD. The EA has agreed with that the critical flood level is has been derived from the critical flood level is 4.1 m restrictions: AOD. This 4.1 m AOD. The EA has Doncaster LPA on the following 4.1 m AOD. The EA has early planning advice AOD. The EA has agreed with o A potential flood level of up to 4.1 m restriction has agreed with Doncaster LPA restrictions17: agreed with Doncaster LPA from predecessor Doncaster LPA on the AOD should be used for planning been derived from on the following restrictions: o A potential floor level of up to on the following restrictions: organisations of the following restrictions: purposes with finished floor levels 300 early planning o A potential flood level of 4.1 m AOD should be used for o A potential flood level of EA and remains valid o A potential flood level of up mm above this level (i.e. at 4.4 m advice from up to 4.1 m AOD should be planning purposes with finished up to 4.1 m AOD should be following flooding in to 4.1 m AOD should be used AOD). the 2007 flood event predecessor used for planning purposes floor levels 300 mm above this used for planning purposes for planning purposes with o Due to residual flood risk, finished organisations of level (i.e. at 4.4 m AOD). with finished floor levels 300 in areas such as Toll with finished floor levels 300 finished floor levels 300 mm floor levels should aim to be 4.4 m AOD the EA and mm above this level (i.e. at Bar, although surface mm above this level (i.e. at o Due to residual flood risk, above this level (i.e. at 4.4 m as a starting point. However, it is remains valid 4.4 m AOD). water flooding was 4.4 m AOD). finished floor levels should aim AOD). acknowledged that viability issues and following flooding also a significant issue o Due to residual flood risk, to be 4.4 m AOD as a starting o Due to residual flood risk, o Due to residual flood risk, existing AOD may result in lower in the 2007 flood in the 2007 finished floor levels should point. However, it is finished floor levels should finished floor levels should aim finished floor levels which will need to event in areas occurrence. aim to be 4.4 m AOD as a acknowledged that viability aim to be 4.4 m AOD as a to be 4.4 m AOD as a starting be confirmed through a site-specific such as Toll Bar, starting point. However, it is issues and existing AOD may starting point. However, it is point. However, it is flood risk assessment and subject to although surface acknowledged that viability result in lower finished floor acknowledged that viability acknowledged that viability agreement with DMBC and the EA water flooding was levels which will need to be issues and existing AOD also a significant issues and existing AOD confirmed through a site- may result in lower finished issues and existing AOD may issue in the 2007 may result in lower finished specific flood risk assessment floor levels which will need result in lower finished floor occurrence. floor levels which will need to and subject to agreement with to be confirmed through a levels which will need to be be confirmed through a site- DMBC and the EA site-specific flood risk confirmed through a site- specific flood risk assessment and subject to specific flood risk assessment assessment and subject to agreement with DMBC and and subject to agreement with agreement with DMBC and the EA DMBC and the EA the EA The site also has some areas within 1947 and 2007 historical flood area: The SFRA states developments should have floor levels set higher than the recorded flood level, and no lower than 5 m AOD.