Stalybridge - Woodhead (4ZO) OHL Level 1: Archaeological and Cultural Heritage Appraisal Submitted to: Electricity Alliance West Submitted by: AMEC Environment and Infrastructure UK Limited Shrewsbury, UK AMEC Project: 32430 October 2012 5 October 2012 AMEC Ref No: 32430 Dear Sir/Madam Re: Stalybridge – Woodhead (4ZO) OHL Please find enclosed the Level 1: Archaeological and Cultural Heritage Appraisal report for the above project. If you have any questions regarding the project please contact the undersigned. Yours sincerely, Robert Johns Senior Consultant AMEC Environment & Infrastructure UK Ltd Canon Court Abbey Lawn Abbey Foregate Shrewsbury SY2 5DE Tel: +44 (0)1743 342029 Reviewed by: Ken Whittaker Associate Director AMEC Environment & Infrastructure UK Ltd 17 Angel Gate City Road London EC1V 2SH Tel: (020) 7843 1468 Electricity Alliance West Refurbishment Works October 2012 AMEC Project 32430 REPORT ISSUE FORM Client Name Electricity Alliance West Project Name Stalybridge – Woodhead (4ZO) OHL Report Title Level 1 Archaeological and Cultural Heritage Appraisal Document Status & Draft Issue No. 1 Issue No. Issue Date 5 October 2012 Author Robert Johns 24 September 2012 Reviewer Ken Whittaker 28 September 2012 Programme Manager Approval Neil Wright 3 October 2012 Copyright and Non-Disclosure Notice The contents and layout of this report are subject to copyright owned by AMEC (©AMEC Environment & Infrastructure UK Limited 2012) save to the extent that copyright has been legally assigned by us to another party or is used by AMEC under licence. To the extent that we own the copyright in this report, it may not be copied or used without our prior written agreement for any purpose other than the purpose indicated in this report. The methodology (if any) contained in this report is provided to you in confidence and must not be disclosed or copied to third parties without the prior written agreement of AMEC. Disclosure of that information may constitute an actionable breach of confidence or may otherwise prejudice our commercial interests. Any third party who obtains access to this report by any means will, in any event, be subject to the Third Party Disclaimer set out below. Third Party Disclaimer Any disclosure of this report to a third party is subject to this disclaimer. The report was prepared by AMEC at the instruction of, and for use by, our client named on the front of the report. It does not in any way constitute advice to any third party who is able to access it by any means. AMEC excludes to the fullest extent lawfully permitted all liability whatsoever for any loss or damage howsoever arising from reliance on the contents of this report. We do not however exclude our liability (if any) for personal injury or death resulting from our negligence, for fraud or any other matter in relation to which we cannot legally exclude liability. Level 1: Archaeological and Cultural Heritage Appraisal Stalybridge – Woodhead (4ZO) OHL ii Electricity Alliance West Refurbishment Works October 2012 AMEC Project 32430 NON-TECHNICAL SUMMARY This report is an assessment of archaeological and cultural heritage issues arising from EAWs proposed scheme (EAW No. 20594) to refurbish an existing overhead electricity line (OHL) between towers 4ZO250 and 4ZO200, from the Millbrook Area of Stalybridge, Greater Manchester to the entrance of the Woodhead Tunnel in Derbyshire. The total length of the line is almost 16km, running generally in a west to east direction from NGR 397541 399754 to NGR 411149 399867. Approximately one third of the route lies in the metropolitan borough of Tameside, Greater Manchester, with the remainder in Derbyshire High Peak District. This report summarises the legislation and policy (Section 2) and sets out a methodology for appraising the heritage effects of the scheme (Section 3). Section 4 details the Level 1 desk- study and targeted Field Reconnaissance Survey (FRS) and Section 5 describes the cultural heritage interest of the tower route. The potential effects of the development upon both identified and as yet unidentified heritage assets and suggested mitigation options are outlined. Mitigation measures are further detailed in Section 6 and highlighted in Table 1: Summary Mitigation Table, below. Generic mitigation measures are proposed for all towers, i.e. that the latest access routes shown on wayleaves plans must be adhered to at all times, unless changes are agreed in advance. The appraisal also establishes the potential impact for ground works associated with access routes and work compounds to impact upon archaeological remains and cultural heritage assets at 13 of the 52 towers on the 4ZO transmission line. Further specific mitigation measures are detailed for these heritage assets. All mitigation proposals should be subject to Level 2 Archaeological Consultation alongside and during proposed refurbishment works. Mitigation measures have been highlighted as ‘green’, ‘amber’ or ‘red’ to follow a Traffic Light System: • ‘Green’ applies to all towers without identified archaeological constraints in the immediate vicinity of towers and/or access route. It is recommended that access routes must be adhered to in order to prevent damage to any, as yet unknown, archaeological and cultural heritage assets. In some instances further mitigation suitable to specific sites may be recommended. • ‘Amber’ has been applied to those towers and/or access routes with specific archaeological and heritage constraints in the vicinity, or the clear potential for such remains. This includes Grade II Listed Buildings and undesignated heritage assets (e.g. standing buildings, buried archaeology). In this instance suitable mitigation will involve the production of an Archaeological Constraint Map for each tower and possible Level 3 archaeological mitigation. • ‘Red’ is appropriate for towers in close proximity to significant archaeological and/or cultural heritage constraints such as nationally important Scheduled Monuments and Grade I Listed buildings in the immediate vicinity of the tower and/or access route. Suitable mitigation must involve the production of an Archaeological Constraint Map for each tower, following consultation with the local archaeological advisor and Level 1: Archaeological and Cultural Heritage Appraisal Stalybridge – Woodhead (4ZO) OHL iii Electricity Alliance West Refurbishment Works October 2012 AMEC Project 32430 English Heritage, and possible Level 3 archaeological mitigation. Level 1: Archaeological and Cultural Heritage Appraisal Stalybridge – Woodhead (4ZO) OHL iv Electricity Alliance West Refurbishment Works October 2012 AMEC Project 32430 Table 1: Summary Mitigation Table (see Appendix 3: Summary of Mitigation Options) Tower Access Page Map Tower Constraint Mitigation No. Route No. No. ALL TOWERS AND ACCESS ROUTES Adhere to tower access n/a All (4ZO Line) routes Tower in close proximity to Preparation of Staley Hall, Grade II* Listed Archaeological Constraint th Building (9): Restored 16 Map (based on further century hall, built on the site of a consultation and review of 23; 28; 14th century hall (7). Previous 4ZO250 Y Y fieldwork reports) 29; 40; 1 archaeological investigation (8, 44 14) has identified further Archaeological watching medieval and post-medieval brief is recommended in buried archaeological remains in the event of any intrusive the vicinity of the hall (6) groundworks Access to tower over the Preparation of projected route of Doctor Gate Archaeological Constraint Roman road (74), although no Map 19; 20; proven remains in this location 4ZO248 Y Y Archaeological watching 29; 40; 1 Church of St James, Grade II brief is recommended in 44 Listed Building (22), in relatively the event of any intrusive close proximity groundworks Potential access to tower Preparation of passes in close proximity to Archaeological Constraint excavated site of Romano- Map (based on further British metal-working site (35, consultation and review of 28; 29; 4ZO245 N Y 36) and potential route of the fieldwork reports) 1 Werneth Low to Castleshaw 40; 44 Archaeological watching Roman road (70) brief is recommended in N.B. Whole tower to be the event of any intrusive replaced groundworks Tower/ access located in close Preparation of proximity (c. 30m) to known Archaeological Constraint Mesolithic flint-working site (40 - Map 43 inc.) 22; 30; 4ZO244 Y Y Archaeological field 1 Access along narrow trackway evaluation (i.e. trial 40; 44 which is of some historic interest trenching) is N.B. Whole tower to be recommended prior to any replaced intrusive groundworks Level 1: Archaeological and Cultural Heritage Appraisal Stalybridge – Woodhead (4ZO) OHL v Electricity Alliance West Refurbishment Works October 2012 AMEC Project 32430 Table 1 (continued): Summary Mitigation Table (see Appendix 3: Summary of Mitigation Options) Tower Access Page Map Tower Constraint Mitigation No. Route No. No. TBC through consultation Preparation of No archaeological constraints Archaeological Constraint currently identified although Maps 4ZO242 towers located in moorland with Archaeological field 4ZO241 a general potential for 30/31; Y Y evaluation (i.e. trial 1; 2 4ZO239 prehistoric remains, particularly 40; 44 trenching) is 4ZO237 flint findspots recommended prior to any N.B. Whole tower to be intrusive groundworks. replaced at each of these TBC through consultation locations TBC through consultation Preparation of Similar archaeological potential Archaeological Constraint to the above towers (4ZO242; Maps 4ZO243 4ZO241; 4ZO239; 4ZO237),