Crossrail Line 1 Assessment of Archaeology Impacts, Technical Report
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CROSSRAIL LINE 1 ASSESSMENT OF ARCHAEOLOGY IMPACTS, TECHNICAL REPORT. PART 5 OF 6, WESTERN ROUTE SECTION 1E0318-W1E00-00001 Cross London Rail Links Limited 1, Butler Place LONDON SW1H 0PT Tel: 020 7941 7600 Fax: 020 7941 7703 www.crossrail.co.uk CROSSRAIL LINE 1 ASSESSMENT OF ARCHAEOLOGY IMPACTS TECHNICAL REPORT PART 5 OF 6, WESTERN ROUTE SECTION: MAIDENHEAD TO WESTBOURNE GROVE February 2005 Project Manager: George Dennis Project Officers: James Drummond-Murray, Nicholas J Elsden, Authors: Jon Chandler, Robert Cowie, Catherine Drew, Antony Francis, Heather Knight, Pat Miller Museum of London Archaeology Service © Museum of London Mortimer Wheeler House, 46 Eagle Wharf Road, London N1 7ED tel 0207 410 2200 fax 0207 410 2201 email [email protected] Archaeology Service 16/02/2005 Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS List of Contents 1 Introduction 1 2 Route overview 2 2.1 Zone V: Maidenhead 2 2.1.1 Boundaries and layout 2 2.1.2 Topography and geology 2 2.1.3 Archaeological and historical background 2 2.2 Zone W: the Thames floodplain 7 2.2.1 Boundaries and layout 7 2.2.2 Topography and geology 7 2.2.3 Archaeological and historical background 7 2.3 Zone X: Lent Rise to Langley, including Slough 10 2.3.1 Boundaries and layout 10 2.3.2 Topography and Geology 10 2.3.3 Archaeological and historical background 10 2.4 Zone Y: Langley to Iver 16 2.4.1 Boundaries and layout 16 2.4.2 Topography and geology 16 2.4.3 Archaeological and historical background 16 2.5 Zone Z: Colne Valley 19 2.5.1 Boundaries and layout 19 2.5.2 Topography and geology 19 2.5.3 Archaeological and historical background 19 2.5.4 Selected research themes 23 2.6 Zone A: West Drayton to Hayes 24 2.6.1 Boundaries and layout 24 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 2.6.2 Topography and geology 24 2.6.3 Archaeological and historical background 24 2.6.4 Selected research themes 28 2.7 Zone B: Hayes to Southall, the valley of the Yeading Brook 29 2.7.1 Boundaries and layout 29 2.7.2 Topography and geology 29 2.7.3 Archaeological and historical background 29 2.7.4 Selected research themes 31 2.8 Zone C: Southall 32 2.8.1 Boundaries and layout 32 2.8.2 Topography and geology 32 2.8.3 Archaeological and historical background 32 2.8.4 Selected Research Themes 34 2.9 Zone D: Southall to Hanwell 35 2.9.1 Boundaries and layout 35 2.9.2 Topography and geology 35 2.9.3 Archaeological and historical background 35 2.9.4 Selected research themes 37 2.10 Zone E: Hanwell to Acton 38 2.10.1 Boundaries and layout 38 2.10.2 Topography and geology 38 2.10.3 Archaeological and historical background 38 2.10.4 Selected research themes 41 2.11 Zone F: Acton to Westbourne Green 42 2.11.1 Boundaries and layout 42 2.11.2 Topography and geology 42 2.11.3 Archaeological and historical background 42 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 2.11.4 Selected research themes 46 3 Scheme Description 47 3.1 Overview of Crossrail Works in Western Route Section 47 3.1.1 Permanent Works 47 3.1.2 Construction 47 3.1.3 Design Options 47 3.2 The Route Windows 47 3.3 Route Window W25: Maidenhead Station 51 3.3.1 Overview of Route Window W25 51 3.3.2 Permanent Works 51 3.4 Route Window W24: Maidenhead Railway Bridge 52 3.4.1 Overview of Route Window W24 52 3.5 Route Window W23: Taplow Station 52 3.5.1 Overview of Route Window W23 52 3.6 Route Window W22: Lent Rise 52 3.6.1 Overview of Route Window W22 52 3.7 Route Window W21: Burnham Station 53 3.7.1 Overview of Route Window W21 53 3.8 Route Window W20: Dover Road and Leigh Road Bridges 53 3.8.1 Overview of Route Window W20 53 3.9 Route Window W19: Stoke Poges Lane Bridge 54 3.9.1 Overview of Route Window W19 54 3.10 Route Window W18: Slough Station 54 3.10.1 Overview of Route Window W18 54 3.10.2 Permanent Works 55 3.11 Route Window W17: Middlegreen Road, St. Mary’s Road and Trenches Bridges 56 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 3.11.1 Overview of Route Window W17 56 3.12 Route Window W16: Langley Station 56 3.12.1 Overview of Route Window W16 56 3.13 Route Window W15: Dog Kennel Bridge 57 3.13.1 Overview of Route Window W15 57 3.14 Route Window W14: Iver Station 58 3.14.1 Overview of Route Window W14 58 3.15 Route Window W13: West Drayton Station 59 3.15.1 Overview of Route Window W13 59 3.15.2 Permanent Works 60 3.16 Route Window W12: Kingston Lane Bridge and Old Stockley Road Bridge 60 3.16.1 Overview of Route Window W12 60 3.17 Route Window W11: Stockley Flyover 61 3.17.1 Overview of Route Window W11 61 3.17.2 Permanent Works 61 3.18 Route Window W10: Hayes and Harlington Station 62 3.18.1 Overview of Route Window W10 62 3.18.2 Permanent Works 62 3.19 Route Window W9: Southall West Sidings 63 3.20 Route Window W8: Southall Station 63 3.20.1 Overview of Route Window W8 63 3.20.2 Permanent Works 63 3.21 Route Window W7: Hanwell Station 64 3.21.1 Overview of Route Window W7 64 3.22 Route Window W6: West Ealing Station 64 3.22.1 Overview of Route Window W6 64 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 3.22.2 Permanent Works 64 3.23 Route Window W5: Ealing Broadway Station 65 3.23.1 Overview of Route Window W5 65 3.23.2 Permanent Works 65 3.24 Route Window W4: Acton Main Line Station and Yard 65 3.24.1 Overview of Route Window W4 65 3.24.2 Permanent Works 66 3.25 Route Window W3: Old Oak Common Depot 67 3.25.1 Overview of Route Window W3 67 3.25.2 Permanent Works 67 3.26 Route Window W2: Canal Way 67 3.26.1 Overview of Route Window W2 67 3.27 Route Window W1: Portobello Junction 68 3.27.1 Overview of Route Window W1 68 4 Site assessments 69 4.1 Route-wide impacts 69 4.2 Route Window W25 69 4.2.1 Site 10 Maidenhead Stabling and Turnback Facility 69 4.2.2 Site 11 Maidenhead Station 74 4.3 Route Window W23 82 4.3.1 Site 12 Taplow Station 82 4.4 Route Window W21 88 4.4.1 Site 13 Burnham Station 88 4.5 Route Window W20 92 4.5.1 Site 14 Dover Road Bridge 92 4.5.2 Site 15 Leigh Road Bridge 96 4.6 Route Window W19 102 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 4.6.1 Site 16 Farnham Road Bridge 102 4.6.2 Site 18 Stoke Poges Lane Bridge 107 4.7 Route Window W18 111 4.7.1 Site 19 Slough Station 111 4.7.2 Site 20 Uxbridge Road Bridge and Wexham Road Bridge 117 4.8 Route Window W17 122 4.8.1 Site 21 Middlegreen Road Bridge 122 4.8.2 Site 22 Trenches Bridge and Church Lane Bridge 127 4.9 Route Window W16 134 4.9.1 Site 23 Langley Station 134 4.10 Route Window W15 140 4.10.1 Site 24 Dog Kennel Bridge and Chequers Bridge 140 4.11 Route Window W14 147 4.11.1 Site 25 Iver Station and Thorney Lane Bridges 147 4.12 Route Window W13 154 4.12.1 Site 26 West Drayton Stabling Sidings 154 4.12.2 Site 27 West Drayton Station 161 4.13 Route Window W12 167 4.13.1 Site 28 Kingston Lane Bridge 167 4.13.2 Site 29 Stockley Bridge/ Stockley Road, West Drayton 172 4.14 Route Window W11 177 Site 1 Stockley Flyover (Airport Junction) 177 4.15 Route Window W10 183 4.15.1 Site 2 Hayes and Harlington Station 183 4.16 Route Window W8 189 4.16.1 Site 3 Southall Station 189 4.17 Route Window W7 194 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 4.17.1 Site 4 Hanwell and Elthorne Station 194 4.18 Route Window W6 199 4.18.1 Site 5 West Ealing Station 199 4.19 Route Window W5 204 4.19.1 Site 6 Ealing Broadway Station 204 4.20 Route Window W4 210 4.20.1 Site 7 Acton Station and Dive-under 210 4.21 Route Window W3 216 4.21.1 Site 8 Old Oak Common Depot 216 4.21.2 Site 91 Ladbroke Grove to Westbourne Park track works 220 4.22 Route Window W2 223 4.23 Route Window W1 223 4.24 Cumulative Impacts 224 5 Appendix 1: Site specific assumptions 226 Appendix 2: Technical Assessment of Historic Railway Bridges [in separate document] 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 0007_R_Western.doc Crossrail Archaeological Impact Assessment: Western Route Section © MoLAS 1 Introduction This report is Part 5 (of 6) in a specialist technical study on archaeological resources, produced as part of the Environmental Impact Assessment for Crossrail.