Marlborough Street Public Transport Priority Bridge Local Authority: Dublin City Council
Total Page:16
File Type:pdf, Size:1020Kb
ENVIRONMENTAL IMPACT STATEMENT – DIRECTION CASE Marlborough Street Public Transport Priority Bridge Local Authority: Dublin City Council INTRODUCTION I have read the contents of the file reference number 29N.HD0011 and I inspected the site on 13 th October, 2008. The purpose of this assessment is to advise on whether or not An Bord Pleanála should issue a direction to Dublin City Council (the Council) under Section 50(1)(b) of the Roads Act 1993 to prepare an environmental impact statement (EIS) for the above proposed road development. REQUEST FOR DIRECTION UNDER ROADS ACT By letter of 3 September 2008 the Council requested “the permission of An Bord Pleanála to carry out an Environmental Impact Assessment” for the proposed bridge. The Council wish to carry out an EIA due to the historical and architectural sensitivity of the location adjacent to O’Connell Bridge and the city quay walls. The Council’s request was accompanied by a 35 page Design Options Study Report and a 16 A3 page book of drawings. The Report does not directly address the screening issue although it does contain an element of scoping of an EIS. There is no legislative provision for the Board to grant “permission” to carry out an EIA and the request is being treated as a request for a direction under Section 50(1)(b) and (c) of the Roads Act 1993 (as amended). THE PROPOSED ROAD DEVELOPMENT There are a number of alternative designs indicated for the proposed bridge but the recommended option is for a single span prestressed concrete bridge. The proposed bridge alignment is from the quay end of Hawkins Street to the quay end of Marlborough Street. The bridge would have a span of approximately 46 metres and have a 23 metre cross section. The bridge would provide two southbound bus lanes, one southbound light rail track, two footpaths and two cycletracks (one northbound and one southbound). The bridge would be required to carry northbound diverted traffic during the Metro North _____________________________________________________________________ 29N.HD0011 An Bord Pleanála Page 1 of 9 construction works in the vicinity of O’Connell Bridge prior to the bridge’s use for southbound bus lanes and light rail. The 23 metre cross section is illustrated in drawing 012 and is made up of: • Two footpaths of 3 metre width plus 1 metre for planters and seating i.e. 4 metre width each; • Two cycle lanes each of 1.6 metre width; • Two bus lanes each of 3.5 metre width; • One Luas line 3.3 metre width along the centre line of the bridge; • One 1.5 metre island alongside the Luas line. In addition there will be two concrete upstands of undefined width and height separating the footpaths from traffic lanes and also having structural and flood protection purposes. The vertical alignment rises to a crest curve of 700 metres over the river with the southern (Burgh Quay) end slightly higher than the northern (Eden Quay) end. The works will require the removal of the quay parapet walls at both ends of the bridge and will result in the loss of two trees on Eden Quay and one tree on Burgh Quay. The works will also require the relocation of a memorial at the junction of Burgh Quay and Hawkins Street. The board walk may be removed on the Eden Quay end of the bridge and approach lengths along the quay. The Railway Procurement Agency (RPA) require a temporary road bridge before this bridge opens – possibly downstream. (Report p35) Drawing 012 indicates that piling will be required for the bridge abutments. Inspector’s Note : The proposed Bridge is described as a “public transport priority bridge” and the two non-Luas lanes are described as “bus lanes”. The Design Options Report” appears to assume bus only use of the traffic lanes and I have assumed this to be the case. However, the use of the word “priority” in the title would seem to create some ambiguity and it is normal for bus lanes to be open to other motor traffic at some periods of the day. _____________________________________________________________________ 29N.HD0011 An Bord Pleanála Page 2 of 9 DESCRIPTION OF SITE WITH PHOTOGRAPHS The immediate surroundings of the proposed bridge site are described below with the aid of photos taken on my site visit. Figure 1 attached, based on submitted Drawing 001 – “Existing Condition”, shows the approximate location and direction from which the photos were taken. The proposed single span bridge is located between O’Connell Bridge (a protected structure) to the west and the Custom House, Butt Bridge and the Loop Line railway bridge to the east. Both O’Connell Bridge and Butt Bridge are three span structures. Photos A and B are taken looking downriver to the site from O’Connell Bridge and upriver from Butt Bridge respectively. O’Connell Bridge would be largely obscured by the proposed bridge (see Drawing 014). On both Eden Quay and Burgh Quay the quayside is lined by mature deciduous trees three of which would have to be removed. On Eden Quay there is a board walk on the river side of the quay wall. It is not decided yet whether the Board Walk will be disrupted or “run through” the proposed bridge. The photomontages show one option in views down river and the other in upriver views (Drawings 013 and 014). Photos C and D show views from O’Connell Bridge looking towards the junctions of the Quays with Marlborough St. and Hawkins St. respectively. On Eden Quay the 4 buildings west of the Marlborough St. corner are protected structures as are three of the four buildings east of it. On Burgh Quay the Sheahan memorial at the junction of Hawkins St is a protected structure as are the four buildings adjoining the junction eastward. Photos E and F show views towards the proposed bridge site from Marlborough St. and from Hawkins St. respectively. On Marlborough Street the trees on the eastern footpath are larger and more important in the streetscape then those on the quayside which would be removed. The granite quay parapet wall would, of course, be removed. On Hawkins St. the memorial would be directly on the line of the Luas and have to be relocated. Photo G provides a closer view of the memorial and the quay parapet wall on the south side of the Liffey. The quay walls themselves, while not protected structures at this location, are important structures themselves. The south quay wall is illustrated in photo D and a close up of the north quay wall in photo I . Portions of both walls would be covered up by the proposed bridge abutments (Drawing 011). _____________________________________________________________________ 29N.HD0011 An Bord Pleanála Page 3 of 9 ASSESSMENT Introduction The Dublin City Development Plan 2005-2011. The site forms part of a Conservation Area and is partly within the O’Connnell St. Architectural Conservation Area. It is also within a Zone of Archaeological Interest. Protected structures within the vicinity have been referred to above. POLICY H16:It is the policy of Dublin City Council to protect and reinforce the important civic design character of Dublin’s quays, which are designated a conservation area and infill development should complement the character of the quays in terms of context, scale and design. Paragraph 7.8.0 provides for a “pedestrian bridge” from Marlborough Street to Hawkins Street. Variation 27, adopted 7 July 2008 (copy attached), amended this to just “bridge”. Transport 21 – Capital Investment Framework under the National Development Plan Transport 21 includes the Luas Line BX – Line D – St. Stephens Green to Liffey Junction. The line running south on the proposed bridge is part of Line BX. The projected completion date is given as “under review” on the Transport 21 website. Metro North : The Metro North Railway Order application, accompanied by an EIS, went on display in the Board’s Offices on 17 September 2008. The Luas BX line and the Marlborough Bridge across the River Liffey are noted under paragraph “2.18.3 Cumulative Impacts” in the NTS. The Role of An Bord Pleanála Section 50(1)(c) of the Roads Act, 1993 requires that where a road authority considers that any proposed road development, while being below the relevant threshold for which an EIS would be mandatory, would be likely to have significant effects on the environment , it shall inform the Minister in writing and, where the Minister concurs with the road authority, he shall give a direction to the road authority [under Section 50(1)(b)] to prepare an EIS in respect of such development. This function of the Minister was transferred to An Bord Pleanála under Section 215 of the Planning and Development Act, 2000. _____________________________________________________________________ 29N.HD0011 An Bord Pleanála Page 4 of 9 Under Section 50(1)(b) of the Roads Act, where the Board considers that any proposed road development consisting of the construction of a proposed public road would be likely to have significant effects on the environment, the Board shall direct the road authority to prepare an environmental impact statement (EIS) in respect of such proposed road development, whether or not such a direction has been requested by the road authority. The Council requested “the permission” of the Board to prepare an EIS for the proposed bridge due to the historical and architectural sensitivity of the location adjacent to O’Connell Bridge and the city quay walls. While it would seem reasonable that the Council should be directed to prepare an EIS if they wish to do so, for An Bord Pleanála to issue the direction sought, the Board must consider that the proposed bridge is likely to have significant effects on the environment having regard to its normal criteria – the same criteria it would use if the request had come from a third party rather than the Council itself.