J6151 SES3 Contents AW.Qxd
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Chapter 1 Introduction 2 Crossrail 1 Introduction 1.1 Overview 1.1.1 This document is supplementary to, and should be read in conjunction with, the Environmental Statement (ES) for the Crossrail project (referred to as the ‘main ES’) as published in February 2005. Two Supplementary Environmental Statements (SESs) have been published since the main ES, the first in May 2005, and the second in January 2006. This document forms the third SES since the main ES. It provides additional information on some proposed changes to works (project alterations) following consultation on the ESs, interim findings of the Crossrail House of Commons Select Committee in July 2006, undertakings given to the Select Committee and individual petitioners, and changes following further design development. 1.1.2 All of the changes are within the current limits of the Bill and no changes to the powers set out in the Bill are required, hence none of these changes require an Amendment of Provisions. It is the purpose of this ES (hereafter referred to as ‘SES3’) to provide an assessment of the environmental impacts arising from the revised proposals to which the changes relate. The changes that require assessment are summarised in Table 1.1. Specifically this SES3 describes the permanent and temporary works and/or requirements for the use of land arising from the revised proposals, and any changes to the environmental baseline and assessment of significant environmental impacts from those reported in the main ES. 1.1.3 Errata which have been identified since the publication of the preceding ESs are set out in Appendix 1 of this SES3. Appendix 2 includes a copy of the clarifying report sent recently to affected residents in the Whitechapel station area setting out the likely construction noise impacts and associated mitigation. 1.1.4 The measures that will be used to mitigate impacts during Crossrail’s construction are described in Appendix B1 of the main ES. Implementation of these measures has been assumed in this SES3. The impacts reported in this SES3 are residual impacts, ie the significant impacts that will remain after the application of generic or specific measures to reduce or control them. 1.1.5 This SES3 is presented by route window, as in the main ES. Table 1.1 Main Elements of the Changes Statement3 Supplementary Environmental Area of Change Route Description of the Original Works Description of the Revised Scheme Local to Scheme Window Authority Cumulative Route- At the time the cumulative impacts arising The likely significant adverse cumulative impact Various Impacts with the wide from the interaction between Crossrail and due to construction traffic on Marshgate Lane London 2012 the Olympics were assessed in the main ES, and Cook’s Road remains as reported in the Olympic Games the decision as to which of the applicant cities main ES. The construction of Crossrail will would host the 2012 Olympic games had not interface with the Olympics at a number of been made. The main ES identified a likely other sites during the staging of the games. significant beneficial cumulative impact due The Crossrail works will be arranged so as to construction traffic affecting users of Wick to allow the games to proceed unhindered Lane, Marshgate Lane and Cook’s Road, and and to ensure an appropriate environment a likely significant beneficial cumulative impact for the games. due to the remediation of contaminated land. The main ES noted that these impacts would be explored further in an SES if the Olympics bid were to be successful. The Olympic Games were awarded to London in July 2005. SES3 3 4 Area of Change Route Description of the Original Works Description of the Revised Scheme Local to Scheme Window Authority Revised Tunnelling Route- Crossrail requires the construction of 23 km of The revised strategy comprises driving the Various Strategy wide twin-bore running tunnels. The running tunnels central tunnels from Royal Oak portal to the in the central area will link the Great Western west end of Farringdon station (6.16 km), from Main Line (GWML) surface rail at Royal Oak the site on the Limmo Peninsula through the portal with new subsurface stations at Isle of Dogs to the east end of Farringdon station Paddington, Bond Street, Tottenham Court (8.30 km) and from Pudding Mill Lane portal Road, Farringdon, Liverpool Street, Whitechapel to Stepney Green (2.79 km) with an option to and the Isle of Dogs. The tunnels will connect reverse that drive, ie tunnel from Stepney Green to the existing surface rail route at Victoria Dock to Pudding Mill Lane instead. The drives from portal, and via separate running tunnels, connect Limmo Peninsula to Victoria Dock portal and to the Great Eastern Main Line (GEML) surface the Thames Tunnel drive remain unchanged rail at Pudding Mill Lane portal. The other bored from the original strategy. Crossrail tunnels will run from the North Woolwich portal under the River Thames to Plumstead portal. The tunnelling strategy identified in the main ES (Volume 1 Chapter 2, Section 2.5, paragraph 2.5.12) describes how the Crossrail tunnels will be constructed. Crossrail Crossrail Supplementary Environmental Statement3 Supplementary Environmental Area of Change Route Description of the Original Works Description of the Revised Scheme Local to Scheme Window Authority Royal Oak portal: C1 The Crossrail route runs along surface railway 1. To reduce overall vehicle mileage and City of within the existing rail corridor through the increased emissions, a temporary concrete Westminster 1. Provision of a western part of this route window. The route batching facility is proposed on the site during temporary concrete then passes into a tunnel at Royal Oak. the construction, thereby minimising the period batching plant The permanent works will consist of: a train during which no concrete batching plant at Royal Oak reversing facility at Westbourne Park and track is available in this location. worksite west alterations to the GWML; an approach ramp, a portal at Royal Oak, a cut and cover tunnel, 2. Revised design 2. Changes to the design of the permanent and a twin-bore tunnel commencing at of permanent reinstated batching plant are now proposed Westbourne Park; and Westbourne bridge shaft, reinstated concrete which require reassessment. containing intervention and ventilation facilities. batching plant Paddington station: C2 Crossrail’s twin-bore tunnels will pass beneath 1. Servicing of rail facilities and retail units City of the surface railway lines that run into Paddington within the station, which currently takes place Westminster 1. Provision of station. The route will then follow the alignment from Departures Road, will not be possible a new temporary of Eastbourne Terrace before continuing under during construction. An alternative location SES3 service deck on Spring Street and Sussex Square in twin-bore from which servicing can be undertaken is the site of 4 – 18 tunnels, with rails at a depth of between proposed at the site of 4 – 18 Bishop’s Bishop’s Bridge approximately 20 and 30 m below street level. Bridge Road. The service facility requires Road At Paddington station, the permanent works will the construction of a deck structure on consist of a new Crossrail station with two new the site of 4 – 18 Bishop’s Bridge Road. ticket halls under Eastbourne Terrace; and two new ventilation and emergency intervention 2. Permanent use of 2. Permanent provision for taxis which currently structures, one at each of the ticket halls. the Red Star Deck use Departures Road will be made on the Red GWML parcels office at 4 – 18 Bishop’s Bridge as a taxi facility Star Deck, with access from Bishop’s Bridge Road. Road will require demolition to accommodate main works and a temporary taxi facility was to be constructed on the Red Star Deck. 5 6 Area of Change Route Description of the Original Works Description of the Revised Scheme Local to Scheme Window Authority Tottenham Court C5 Crossrail’s twin-bore tunnels will pass between 1. Construction planning changes at the City of Road station: Poland Street in the west and Jockey’s Fields Astoria worksite will require the sinking of Westminster in the east with rails at a depth of approximately another shaft on the Astoria site from which and London 1. Construction 24 m below street level. East of Poland Street, the construction of the low-level ticket hall Borough of planning changes the alignment runs under Soho, approximately works will be undertaken. Also, lorries will Camden at Astoria site parallel with Oxford Street, towards Charing access the Astoria worksite direct from Charing Cross Road. The alignment then turns Cross Road and lorry holding will take place northeast and passes under New Oxford within the worksite. Street into Holborn. As well as the twin-bore tunnels, the permanent works will consist of 2. Use of New 2. Use of New Oxford Street subway a new station at Tottenham Court Road with Oxford Street for LU ventilation. two ticket halls, each with a street entrance, subway for London and a new shaft at Fisher Street. Underground (LU) ventilation Farringdon station: C6 The Crossrail tunnels will pass from Holborn, As a result of further work on construction City of London amendments to beneath the Fleet Valley and Smithfield, and planning there will be an increase in the and London lorry numbers then to Aldersgate and the Barbican, with the numbers of lorries accessing the various Borough of at Farringdon rails at a depth of about 31 m below street level. Farringdon worksites, and amendments Islington The permanent works will consist of a twin-bore to routeing. tunnel, and a new station at Farringdon, with western and eastern ticket halls and integrated ventilation and emergency access.