South Gyle, Broxburn and Bathgate (Potentially Vulnerable Area 10/27)
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South Gyle, Broxburn and Bathgate (Potentially Vulnerable Area 10/27) Local Plan District Local authority Main catchment Forth Estuary The City of Edinburgh River Almond Council, West Lothian Council Summary of flooding impacts Summary of flooding impacts flooding of Summary At risk of flooding • 1,600 residential properties • 330 non-residential properties • £2.4 million Annual Average Damages (damages by flood source shown left) Summary of objectives to manage flooding Objectives have been set by SEPA and agreed with flood risk management authorities. These are the aims for managing local flood risk. The objectives have been grouped in three main ways: by reducing risk, avoiding increasing risk or accepting risk by maintaining current levels of management. Objectives Many organisations, such as Scottish Water and energy companies, actively maintain and manage their own assets including their risk from flooding. Where known, these actions are described here. Scottish Natural Heritage and Historic Environment Scotland work with site owners to manage flooding where appropriate at designated environmental and/or cultural heritage sites. These actions are not detailed further in the Flood Risk Management Strategies. Summary of actions to manage flooding The actions below have been selected to manage flood risk. Flood Natural flood New flood Community Property level Site protection protection management warning flood action protection plans scheme/works works groups scheme Actions Flood Natural flood Maintain flood Awareness Surface water Emergency protection management warning raising plan/study plans/response study study Maintain flood Strategic Flood Planning Self help Maintenance protection mapping and forecasting policies scheme modelling Forth Estuary Local Plan District Section 2 338 South Gyle, Broxburn and Bathgate (Potentially Vulnerable Area 10/27) Local Plan District Local authority Main catchment The City of Edinburgh Council, Forth Estuary River Almond West Lothian Council Background This Potentially Vulnerable Area is The main watercourses are the River 154km² and situated in the lower Almond and its tributaries the Brox Burn reaches of the River Almond catchment and the Gogar Burn. (shown below). It includes the western areas of Edinburgh including Edinburgh The area has a risk of river and surface Airport and South Gyle, Bathgate, water flooding. Broxburn and Livingston. There are approximately 1,600 residential properties and 330 non- residential properties at risk of flooding. The Annual Average Damages are approximately £2.4 million. River 50% Surface water 50% © Crown copyright. SEPA licence number 100016991 (2015). All rights reserved. Figure 1: Annual Average Damages by flood source Summary of flooding impacts The highest risk of river flooding is from the Gogar Burn, Brox Burn and the River Almond to South Gyle (Edinburgh), Broxburn and Kirkliston. The highest risk of surface water flooding is in Edinburgh, Broxburn, Livingston and Bathgate. The risk of flooding to people, property, as well as to community facilities, utilities, the transport network, designated sites and agricultural land is summarised in Table 1. The damages associated with floods of different likelihood are shown in Figure 2. For this Potentially Vulnerable Area the highest damages are to residential properties, non-residential properties and roads. The location of the impacts of flooding is shown in Figure 3. The figures presented for Annual Average Damages include damages to residential properties, non-residential properties, transport and agriculture. 339 Section 2 Forth Estuary Local Plan District 1 in 10 1 in 200 1 in 1000 High likelihood Medium likelihood Low likelihood Residential properties 130 1,600 1,900 (total 51,000) Non- residential 70 330 370 properties (total 4,500) People 290 3,500 4,300 <10 Includes: <10 Includes: Community educational buildings educational buildings 0 facilities and emergency and emergency services services Utilities 20 70 90 2 M roads (M8, M9), 2 M roads (M8, M9), 2 M roads (M8, M9), 8 A roads, 9 B roads 8 A roads, 9 B roads 9 A roads, 9 B roads at 352 locations at 540 locations at 615 locations 5 Railway routes at 5 Railway routes at 5 Railway routes at 64 locations: 120 locations: 123 locations: Dalmeny to Dalmeny to Dalmeny to Transport Winchburgh and Winchburgh and Winchburgh and links Haymarket West Haymarket West Haymarket West (excluding Junctions Junctions Junctions minor roads) Midcalder Junction to Midcalder Junction to Midcalder Junction to Holytown Junction Holytown Junction Holytown Junction Carstairs to Edinburgh Carstairs to Edinburgh Carstairs to Edinburgh Drumgelloch to Drumgelloch to Drumgelloch to Newbridge Junction Newbridge Junction Newbridge Junction Edinburgh Airport Edinburgh Airport Environmental designated 0 0 0 areas (km2) Designated cultural 27 32 34 heritage sites Agricultural 2 3.5 5.0 5.3 land (km ) Table 1: Summary of flooding impacts Forth Estuary Local Plan District Section 2 340 £200,000,000 £180,000,000 £160,000,000 £140,000,000 Agriculture £120,000,000 Vehicles £100,000,000 Roads Damages £80,000,000 Non-residential £60,000,000 Residential £40,000,000 £20,000,000 £0 1 in 10 1 in 50 1 in 100 1 in 200 1 in 1000 Figure 2: Damages by flood likelihood History of flooding The following significant floods have been recorded in this area: 20 August 2008: Over 100 properties flooded including at least five businesses. 2004 and 2005: A series of flood events in Broxburn resulted in the promotion of the Broxburn Flood Protection Scheme. 8 November 2000: High water levels on the River Almond caused flooding in Kirkliston. 26 April 2000: High water levels on the Gogar Burn caused flooding at Edinburgh Airport and nearby hotel. 341 Section 2 Forth Estuary Local Plan District Figure 3: Impacts of flooding Forth Estuary Local Plan District Section 2 342 Objectives to manage flooding in Potentially Vulnerable Area 10/27 Objectives provide a common goal and shared ambition for managing floods. These objectives have been set by SEPA and agreed with flood risk management authorities following consultation. They were identified through an assessment of the underlying evidence of the causes and impacts of flooding. Target areas have been set to focus actions; they do not necessarily correspond to areas at risk in SEPA’s flood map. The objectives below have been set for South Gyle, Broxburn and Bathgate Potentially Vulnerable Area. Reduce economic damages to residential and non-residential properties in Edinburgh caused by flooding from the Gogar Burn Indicators: Target area: • £290,000 Annual Average Damages from residential properties Image found and displayed. Objective ID: 10088 ©Crown copyright. All rights reserved. SEPA lic.no. 100016991 (2015) Accept that significant flood risk in Broxburn is managed appropriately. Maintain existing actions that reduce economic damages to residential and non- residential properties in Broxburn caused by flooding from the Brox Burn. Indicators: Target area: • £190,000 Annual Average Damages from residential properties • £15,000 Annual Average Damages from non-residential properties Image found and displayed. Objective ID: 10089 ©Crown copyright. All rights reserved. SEPA lic.no. 100016991 (2015) 343 Section 2 Forth Estuary Local Plan District Reduce risk to community facilities in the South Gyle, Broxburn and Bathgate Potentially Vulnerable Area caused by river flooding Indicators: Target area: • One emergency service (airport fire station) Image found and displayed. Objective ID: 10090 ©Crown copyright. All rights reserved. SEPA lic.no. 100016991 (2015) Reduce risk to people from river flooding in Broxburn and South Gyle Indicators: Target area: • 2,000 people Image found and displayed. Objective ID: 10091 ©Crown copyright. All rights reserved. SEPA lic.no. 100016991 (2015) Forth Estuary Local Plan District Section 2 344 Reduce economic damages to residential and non-residential properties in Broxburn, West Main Street, caused by flooding from the Brox Burn Indicators: Target area: • 30 residential properties • £14,000 Annual Average Damages from residential properties • <10 non-residential properties Image found and displayed. Objective ID: 10096 ©Crown copyright. All rights reserved. SEPA lic.no. 100016991 (2015) 345 Section 2 Forth Estuary Local Plan District Target area Objective ID Indicators within PVA Winchburgh Reduce the physical or disruption risk 10303 • 2.2km of rail track related to the transport network for rail at 12 locations Bathgate Reduce economic damages and number 10045 * See note below of residential properties at risk of surface water flooding in Bathgate where practical Edinburgh, Reduce economic damages and number 10052 * See note below Musselburgh, of residential properties at risk of surface Penicuik, water flooding in Edinburgh, Musselburgh, Lasswade, Penicuik, Lasswade, Loanhead, Loanhead, Newtongrange and Dalkeith where practical Newtongrange and Dalkeith Broxburn and Reduce economic damages and number 10085 * See note below eastern Uphall of residential properties at risk of surface water flooding in Broxburn and eastern Uphall where practical Livingston and Reduce economic damages and number 10102 * See note below Mid Calder of residential properties at risk of surface water flooding in Livingston and Mid Calder where practical Applies across Avoid an overall increase in flood risk 10001 • 1,600 residential Forth Estuary properties Local Plan • £2.4 million Annual District Average Damages Applies across