Volume II - Kildare.ie

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N7 Naas Road Widening & Interchanges Scheme Environmental Impact Statement 159 June 2001 Volume 2 IMPACT OF PREFERRED SCHEME ON ARCHITECTURAL, HERITAGE AND CULTURAL FEATURES Ref. No. Feature Impact Site 1 Roseborough House The entrance gates and front boundary fence is affected by the widening of the roadway. Site 2 Kerdiffstown House The entrance gates will be removed by the proposed scheme. Site 3 Palmerstown Demesne The main entrance, gate lodge, and front boundary Site 4 Palmerstown – Secondary Entrance and Gate Lodge wall will be removed by the scheme. The Johnstown Interchange will require the removal of the secondary entrance and gate lodge. Site 5 Greenhills House The frontage environs, including boundary and entrance will be removed by the proposed scheme. Site 6 John Devoy Monument The local link road will require the removal of the John Devoy Monument. Site 7 Period House, Kill East The entrance and front boundary wall of the former rectory will have to be removed. Site 8 Farmhouse, Kill East This vernacular building and outhouses will have to be Site 9 Farmhouse and Buildings, Boherphilip demolished. This cluster of farm buildings with comtemporary farmhouse of distinct vernacular character will have to be demolished. Site 10 Kilwarden House, Kilwarden This comtemporary farmhouse with its vernacular cluster of stables and barns will have to be demolished. Site 11 Blackchurch Bridge This 18 th/19 th century bridge will be significantly affected by the Castlewarden Interchange. Site 12 Milestone No. 13 Milestone number 13, will be affected by the proposed Johnstown Interchange. TABLE 9.12.1
9.13 GEOTECHNICAL ASPECTS N7 Naas Road Widening & Interchanges Scheme Dr. Eric Farrell, Geotechnical Engineer, was engaged to assess the geotechnical aspects of the preferred scheme relevant to the EIS. The report is based on a desk study of available geotechnical information, on site visits, on the preliminary ground investigation carried out in 1993 and on the findings of a more detailed investigation carried out in 2000. The existing ground conditions comprise glacial deposits over bedrock with local areas of soft recent deposits and peats. These soft ground areas, which are from 1m to about 3m depth, are more prevalent in the Johnstown area than possibly elsewhere. The glacial deposits comprise variable deposits of sands, gravels and sandy gravely clays and silts. The water table would be expected to be close to ground level on the low sections of the undulating topography. 9.13.1 IMPACT OF PREFERRED SCHEME The geotechnical aspects relevant to the EIS are the stability of the sides of cut slopes, the possibility of ground movements away from cut sections affecting buildings, the possibility of special construction methods being required for embankment construction on soft ground, the suitability of excavated material for use in embankment construction, and the possible effects of road drainage on water levels surrounding the road. Other aspects of significance include the cost and environmental implications in relation to the amount of soil or rock that have to be disposed off site and the extra amount of soil, over and above that available on site, that has to be brought on the site to build up embankments. 9.13.1.1 Stability of Cut Slopes The depth of cut of the proposed works is relatively shallow apart from the section east of Kill Village between about Ch 48+40 and Ch 58+10 on the N7 where the mainline is in cut to a depth of about 6m. The normal 2 horizontal to 1 vertical side slopes would be suitable for the cut sections. There may be local ingress of water in low sections which could cause instability of side slopes during construction, however this instability can be expected to be overcome by the normal procedure of using fin drains. There is some risk that rock can be encountered in the deep cutting, however on the basis of the information available to date it should be possible to remove the rock by ripping, thus avoiding the need to for blasting. Environmental Impact Statement 160 June 2001 Volume 2
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Morell River Castlewarden North Sla
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9.1 TRAFFIC N7 Naas Road Widening &
Page 5 and 6: Journey Time Route 1. M7-Dublin Co.
Page 7 and 8: Type of Accidents No. of Link Accid
Page 9 and 10: N7 Naas Road Widening & Interchange
Page 11 and 12: The following parameters were measu
Page 15 and 16: 9.3 AIR QUALITY N7 Naas Road Wideni
Page 35 and 36: CPO Reference N7 Naas Road Widening
Page 39 and 40: Environmental Impact Statement Volu
Page 41 and 42: 9.8 BLOODSTOCK N7 Naas Road Widenin
Page 43 and 44: 9.8.1.9 Naas Race Course PLC N7 Naa
Page 45: 9.9.1.4 Scheme Section 4 N7 Naas Ro
Page 48 and 49: 9.10 FLORA AND FAUNA N7 Naas Road W
Page 50 and 51: 9.10.6 CONCLUSIONS AND RECOMMENDATI
Page 58 and 59: 9.13.1.2 Ground Movements N7 Naas R
Page 62 and 63: 9.15 AQUATIC ECOLOGY OF RECEIVING W
Page 66 and 67: 9.16 TRAFFIC ROUTE LIGHTING N7 Naas
Page 68 and 69: 9.17 BRIDGES AND STRUCTURES N7 Naas
Page 70 and 71: 9.17.1.2 Recommendation The design
Page 74 and 75: 9.17.6 MINOR ROAD CULVERTS N7 Naas
Page 76 and 77: 9.18.3 NOISE, VIBRATION AND DUST EM
Page 84: 9.22 INTER-RELATIONSHIPS N7 Naas Ro
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