Newlands Cross Upgrade EIS - European Investment Bank

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South Dublin County Council N7 Newlands Cross Upgrade Environmental Impact Statement 11.4 Predicted Impacts Arup Consulting Engineers The proposed N7 Newlands Cross upgrade will involve some additional areas of land take in its construction. The permanent land take for the proposed scheme layout extends slightly beyond the current layout, impacting on boundary habitats. Temporary land take during the construction phase will extend further into lands south of the existing west-bound carriageway. The scale of the impacts of the proposed road improvement on the habitats of ecological value was assessed on the basis of the Criteria for Assessing Impact Significance and the Site Evaluation Scheme as outlined in the Guidelines for Assessment of Ecological Impacts of National Road Schemes (see Appendices A11.1 to 11.3), and in line with the Guidelines for the Information to be contained in Environmental Impact Statements. 11.4.1 Designated Areas There will be no direct impact on designated areas and no indirect impact is predicted from the scheme due to the distances from closest sites. 11.4.2 Ecological Sites 11.4.2.1 Moreenaruggan The construction of the junction upgrade will result in the removal of an area of immature woodland, mixed conifer woodland and a number of individual mature trees within the temporary and permanent land take area. This will constitute a minor negative impact during the construction phase. 11.4.2.2 Newlands Golf Course The construction of the junction upgrade will result in the removal of the current boundary of hedging and conifers. A number of mature trees will also be removed. This will constitute a minor negative impact during the construction phase. 11.4.2.3 Buckandhounds The construction of the junction upgrade will impact on a narrow area along the current boundary of the woodland plantation. This will result in a neutral impact overall. 11.4.2.4 Other habitats The construction of the junction upgrade will result in the removal of a 20m section of hedgerow and a number of treelines within the temporary and permanent land take area. This will constitute a minor negative impact overall. Replacement planting will help to offset this impact (refer to Section 11.5).The loss of other terrestrial habitats such as improved and amenity grassland has a neutral impact. 11.4.3 Fauna There will be minor negative impacts for fauna in general as a result of the proposed upgrade because of disturbance (during construction but also during operation); loss of areas of suitable habitat for feeding, breeding, roosting and cover. However, as the habitats impacted by the road upgrade are fringe habitats to the existing road, there will not be impacts such as severance of territories and creation of barriers to animal movement. December 2007 Page 167
South Dublin County Council N7 Newlands Cross Upgrade Environmental Impact Statement Arup Consulting Engineers 11.4.3.1 Badgers There will be a minor negative impact on badgers that use the area due to loss of foraging area and general disturbance during construction and site clearance. The loss of one disused badger would have a neutral impact on the local badger population. 11.4.3.2 Bats The key impacts on bats arise through loss of roosts, loss of feeding areas and commuting routes. A variety of habitats is noted along the route – these vary in their importance for bats. The main impact on bats arises through the loss of individual trees and sections of woodland along the route which may be used by a number of bat species. Impact to be quantified through further survey in the spring months when bats are out of hibernation and more active. 11.4.3.3 Birds Birds will be negatively impacted by the loss of feeding and nesting habitat within trees and hedgerows along the route, and potentially by increased disturbance such as noise, particularly during construction of the proposed junction upgrade. Overall however the level of impact on birds will not be significant. 11.4.4 Aquatic Environment and Fisheries There will be no direct impacts on watercourses. However, there is some potential for indirect impacts through surface water run off from site operations into drainage channels that drain into the Camac River. As this is a salmonid river, a siltation or pollution event would have moderate to major impacts on the river. Mitigation measures provided in section 11.5 and Chapter 14 (Section 14.5) will greatly reduce the potential for indirect impacts on the Camac River. 11.5 Mitigation Measures Where appropriate, mitigation proposals have been based on recommendations in the Environmental Assessment and Construction Guidelines, prepared by the NRA 4 All site clearance works will comply with the above NRA Guidelines. • Where programmed construction activities permit, there will be no removal of hedgerows, trees, treelines or areas of semi-natural habitat during the peak bird breeding season of March to June inclusive. • Any confirmed bat roosts occurring within CPO will not be disturbed during the hibernation (November to February) or breeding periods (May to August), in accordance with the NRA “Guidelines for the Treatment of Bats During the Construction of National Road Schemes 18 . • Individual mature trees that are to be retained along the boundary of temporary works line, will be afforded protection in accordance with the NRA Guidelines for the Protection and Preservation of Trees, Hedgerows and Scrub prior to, during and post construction of National Road Schemes 19 • All habitat compensation will be carried out in association with the landscape design and in accordance with the NRA guidelines: A Guide to Landscape Treatment for National Road Schemes in Ireland 20 • The ERFB 21 guidance document on Requirements for the protection of fisheries habitat during construction and development works at river sites should be consulted in advance of the scheme (refer to Chapter 14, Surface Water and Drainage Section 14.5 for relevant mitigation measures). December 2007 Page 168
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PLATES
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APPENDIX A5 - TRAFFIC AND TRANSPORT
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South Dublin County Council Newland
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0 kilometres 2 Scale N.T.S Ordnance
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APPENDIX A8 - NOISE AND VIBRATION
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APPENDIX A9 - AIR QUALITY
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APPENDIX A11 - ECOLOGY
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APPENDIX A12 - ARCHAEOLOGY, ARCHITE
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