Vol8.Ch16.Ref16.17 AMEC WSI trial trenching · Written Scheme of Investigation - Archaeological...
Transcript of Vol8.Ch16.Ref16.17 AMEC WSI trial trenching · Written Scheme of Investigation - Archaeological...
B 05/05/10 C Grindey S Steadman BPE Issue 2 following EDF comments received by e-
mail on 22/04/10 G Bishop
A 22.04.10 C Grindey S Steadman PREL Issue 1 for EDF Comment G Bishop
Revision Date Prepared
by Checked by Status Reasons for revision Approved by
EDF
DEVCO
N/A
N/A
15928/TR/00049 SUPPLIER WBS CODE
N/A
AMEC CONTRACT KR1001
ELEMENTARY SYSTEM
--
SCALE NUCL/REP/EPR/UKEPR/ IPS
N/A Yes No xFORMAT A4
HINKLEY ASSOCIATED DEVELOPMENT
Written Scheme of Investigation: Archaeological Trial Trenching at Junction 23
DOCUMENT TYPE : DOCUMENT CLASSIFICATION CODE PAGE
REPORT 01 POO 1/25
SUBCONTRACTOR COMPANY TRADE NAME
N/A
SUBCONTRACTOR INTERNAL IDENTIFICATION NR
N/A
ACCESSIBILTY Confidential Name list of addressees is established by the initiator. Each recipient receives one numbered exemplary and is not allowed to extend the distribution without initiator authorization
Restricted Name list of addresses is established by the initiator. Each recipient may extend the
distribution under his/her own responsibility
X EDF access Must not be distributed outside of EDF except by a Section Manager
Free access Unrestricted distribution
COPYRIGHT EDF 2010
Written Scheme of Investigation: Archaeological Trial Trenching at Junction 23
15928/TR/00049 Issue 02 - Final May 2010
AMEC 15928/TR/00049 Issue 2 - Final
DOCUMENT ISSUE RECORD (engineering documents)
Document Title : Written Scheme of Investigation:
Archaeological Trial Trenching at Junction 23
Project Reference: 15928/TR/00049
Purpose of Issue : Final Issue
Security Class : EDF access
Issue Description of Amendment Originator/
Author Checker Approver Date
01 -PREL
Preliminary Issue to EDF (PREL)
C Grindey S Steadman G Bishop 22/04/10
02 - BPE
Final Issue C Grindey S Steadman G Bishop 05/05/10
Total number of pages:
Intro: 2 Text 17 Tables 0 Figures 2 Appendices 0
Previous issues of this document shall be destroyed or marked SUPERSEDED
© AMEC Nuclear UK Limited 2010 This report was prepared exclusively for EDF by AMEC Nuclear UK Limited (AMEC). The quality of information, conclusions and
estimates contained herein is consistent with the level of effort involved in AMEC’s services and based on: i) information available
at the time of preparation, ii) data supplied by outside sources and iii) the assumptions, conditions and qualifications set forth in
this report. This report is intended to be used by EDF only, subject to the terms and conditions of its contract with AMEC. Any
other use of, or reliance on, this report by any third party is at that party’s sole risk.
Distribution: EDF
DEVCO 3050aDec07 Controlling Process ProcessNet 9.7.1
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 i Issue 2 - Final
C O N T E N T S
EXECUTIVE SUMMARY ........................................................................................................................ II
1.0 INTRODUCTION ............................................................................................................................ 1 1.1 Project background .............................................................................................................. 1 1.2 Site description .................................................................................................................... 1 1.3 Geology ............................................................................................................................... 1 1.4 Archaeological background ................................................................................................. 2
2.0 PROJECT OBJECTIVES ............................................................................................................... 3
3.0 METHODOLOGY ........................................................................................................................... 4 3.1 General ................................................................................................................................ 4 3.2 Monitoring of topsoil stripping .............................................................................................. 4 3.3 Hand excavation of archaeological features ....................................................................... 5 3.4 Recording ............................................................................................................................ 6 3.5 Artefact recovery ................................................................................................................. 7 3.6 Environmental sampling ...................................................................................................... 7 3.7 Human remains ................................................................................................................... 8 3.8 Treasure .............................................................................................................................. 8 3.9 Reporting ............................................................................................................................. 8
4.0 ARCHIVE PREPARATION AND DEPOSITION .......................................................................... 10
5.0 MONITORING, PROGRESS REPORTS AND MEETINGS ........................................................ 11
6.0 CONFIDENTIALITY AND PUBLICITY ......................................................................................... 12
7.0 COPYRIGHT ................................................................................................................................ 13
8.0 RESOURCES AND TIMETABLE ................................................................................................. 14
9.0 HEALTH AND SAFETY ............................................................................................................... 15
10.0 GENERAL PROVISIONS ............................................................................................................. 16
11.0 REFERENCES ............................................................................................................................. 17
F I G U R E S
Figure 1: Site Location and Archaeological Baseline Figure 2: Trial Trench Locations Figures are bound at the back of this report.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 ii Issue 2 - Final
EXECUTIVE SUMMARY
This document is a Written Scheme of Investigation (WSI) for archaeological trial trenching, on land west of Junction 23 of the M5, Somerset (site centred NGR ST 30520 41180).
These works will be conducted on behalf of EDF as part of a range of surveys aimed at confirming the feasibility of using the land for off-site development associated with the proposed new nuclear power station, Hinkley C, at Hinkley Point.
There are two cultural heritage sites that are located within the site boundary, i.e. flood defences of the River Parrett and medieval pottery finds.
There is one Scheduled Monument (SM) present within the study area, which is located beyond the A38 Bristol Road at the north-east corner of the site.
There are 57 known cultural heritage sites located within the study area. These are predominantly medieval and post-medieval in date, and also include a number of Second World War pillboxes.
Light Detection and Ranging (LIDAR) data has identified additional features most likely pertaining to drainage earthworks, and ridge and furrow field systems, particularly to the north, centre and south-east corner of the site.
Following consultation with SCC it was decided that a geophysical survey was not required at this site due to the likely depth of alluvial deposits.
This WSI presents a methodology for investigation and recording of any surviving archaeological remains on the site.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 1 Issue 2 - Final
1.0 INTRODUCTION
1.1 Project background
EDF is considering, along with a range of other options, seeking planning consent for park and ride and freight consolidation facilities at Junction 23 as part of the associated development for the proposed construction of a new nuclear power station, Hinkley C, at Hinkley Point, Somerset.
EDF’s preference is for the site of the facility (hereafter ‘the site’) to be situated on a c. 23 hectare area located to the west of the town of Puriton and immediately west of the hamlet of Down End, near Junction 23 of the M5 (site centred ST 30520 41180).
This Written Scheme of Investigation (WSI) presents a methodology for an archaeological field evaluation comprising trial trenching to define the nature, date, extent and state of preservation of any surviving archaeological remains on the site.
The archaeological works will be carried out in accordance with the Institute for Archaeologists Standards and Guidance for Field Evaluation (IfA 2008) and the Somerset County Council Heritage Service Archaeological Handbook (SCC 2008).
1.2 Site description
The site lies in the Sedgemoor District of Somerset, north and east of the meandering River Parrett. The topography of the site generally reflects the topography of the wider floodplain comprising flat-lying countryside with ground elevations ranging from approximately 7 m AOD (Above Ordnance Datum).
The majority of the site is occupied by flat, low lying grass pasture fields intersected by field drains, with some fields of disused/rough ground.
Occasional shallow, parallel and perpendicular furrows feature within some of the fields. These were possibly created to improve the drainage of the land, or may be part of previous ridge and furrow field systems. The site boundaries are generally defined by field drains and hedgerows, although 2 m high palisade fencing defines much of the northern boundary (vehicle auction centre), and much of the southern boundary is undefined.
1.3 Geology
The geological map for the area indicates that the site (eastern and western sectors) is entirely underlain by drift deposits consisting of Estuarine Alluvium. Estuarine alluvium typically comprises fine grained deposits of silt and clay but may comprise poorly sorted sand and gravels within a fine grained matrix (BGS, 1984).
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 2 Issue 2 - Final
The map indicates that these drift deposits are underlain by the Blue Lias Formation, although the Mercia Mudstone Group may underlie the alluvium in the southern part of the site (BGS, 1984).
1.4 Archaeological background
A full description of the archaeological and historical background of the site is included in the DBA (AMEC, 2010), and is only briefly summarised here.
The DBA has identified 57 known cultural heritage sites located within the study area (Figure 1). These are predominantly medieval and post-medieval in date, and also include a number of Second World War pillboxes.
There are two cultural heritage sites that are located within the site boundary, i.e. flood defences of the River Parrett and medieval pottery finds.
The Light Detection and Ranging (LIDAR) data and aerial photographs have identified additional features most likely pertaining to drainage earthworks, and ridge and furrow field systems, particularly to the north, centre and south-east corner of the site.
There is one Scheduled Monument (SM) present within the study area, which is located beyond the A38 Bristol Road at the north-east corner of the site.
Within the site the potential for archaeological remains of Palaeolithic, Mesolithic, Neolithic, Bronze Age, Iron Age and early-medieval date is considered to be low.
The potential for archaeological remains of Roman date, in the vicinity of the site is considered to be medium, but for the actual site itself, it is more likely to be low.
However, there is the potential for alluvial deposits associated with the River Parrett, which may mask previously unrecorded features such as Romano-British salterns (pers comm. Steve Membery, Somerset CC).
The potential for archaeological remains of medieval and medieval to post-medieval date is considered to be medium to high.
An archaeological evaluation conducted by AC Archaeology in 1993 on the east side of the site (Valentin and Hawkes, 1993) found no evidence of archaeological activity in the form of features or finds. Although ridge and furrow earthworks were recorded.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 3 Issue 2 - Final
2.0 PROJECT OBJECTIVES
The objectives for the archaeological trial trenching are to:
Establish the nature, date, extent and state of preservation of any surviving archaeological remains on the site; and
Inform the preparation of an appropriate mitigation strategy.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 4 Issue 2 - Final
3.0 METHODOLOGY
3.1 General
All archaeological work will be carried out in accordance with this WSI. The Sub-contractor shall prepare and submit a Method Statement for the works prior to commencement of fieldwork for approval by EDF.
A scheme of works for archaeological trial trenching has been agreed with the Somerset County Council Development Control Archaeologist (SCC DCA).
Twenty nine trial trenches, (3 of 30 m x 2 m, 18 of 50 m x 2m, 3 of 30 m x 4 m and 5 of 50 m x 4 m) will be excavated across the site. The trenches are sited to maximise the potential of locating archaeological remains.
The area of the site available for trial trenching is constrained by the presence of the drainage channels and Dunball Drove. The combined area of the trial trenches, 3,340 m2, comprises approximately 2% of the area available for trial trenching.
A contingency for additional trenching of c. 1% of the available area is proposed.
The proposed locations of the trenches, and indicative locations for the contingency trenches, are shown on Figure 2.
3.2 Monitoring of topsoil stripping
The location of each trench will be plotted on the ground using electronic survey equipment to an accuracy of ± 100 mm to ensure that the position is transcribed accurately from the trench location plan.
Mechanical excavation will proceed using a JCB-type mechanical excavator or other suitable plant, under the direct supervision of an archaeologist.
The topsoil and subsoil will be removed in spits until either the top of the latest archaeological horizon or undisturbed natural deposits are encountered (see also 3.3, below).
Excavation will be carried out using a backward pulling machine, equipped with a flat bladed, toothless bucket. Particular attention will be paid to achieving a clean and well-defined horizon with the machine.
The excavated surface will be inspected for archaeological features and any identified features will be marked on the ground while stripping proceeds, and recorded in plan.
Spoil arising from the trench will be rapidly investigated and scanned with a metal detector to recover any artefacts.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 5 Issue 2 - Final
3.3 Stepping of trenches
The majority of the trial trenches will not be excavated to a depth greater than 1.2 m below ground level (bgl).
However, due to the potential for alluvial deposits masking earlier archaeological remains it is proposed that selected trenches will be stepped to allow mechanical excavation to a depth of up to 2 m bgl.
Eight of the trial trenches, i.e. 9, 12, 13, 15, 18, 21, 25 and 28 (see Figure 2) will be excavated to a width of 4 m and a maximum depth of 1 m, as described in 3.2, above.
The central section of the trench, c. 2 m wide, will be excavated in regular spits until either the top of any buried archaeological remains or undisturbed natural deposits are uncovered.
The stepped section of the trench will be excavated to a maximum depth of 2 m bgl.
The steps will be kept clear of spoil at all times.
Spoil arising from the stepped section of the trench will be kept separate from spoil from the main trench.
The spoil will be rapidly investigated and scanned with a metal detector to recover any artefacts.
There will be no requirement to enter the deeper stepped section of the trench for hand excavation and recording.
Any variation to the above will be subject to agreement with EDF, AMEC and Somerset CC Historic Environment Service.
3.4 Hand excavation of archaeological features
Archaeological features or deposits will be excavated using appropriate hand tools, such as a mattock, shovel and hand trowel.
A sample of each feature will be excavated in an archaeologically controlled manner in order to provide the maximum amount of information with emphasis on stratigraphic relationships between features, recovery of dating evidence, form, extent, level of preservation and function. This will comprise:
A minimum of 10% of the identified feature will be excavated along the length of all linear features (with each section not less than 1 m wide). Key intersections will be investigated to determine the stratigraphic relationship between features;
Discrete features, such as postholes and pits less than 1 m in diameter, will be half-sectioned (50%);
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 6 Issue 2 - Final
A minimum of 25% of the identified feature will be excavated from all discrete features, such as pits, greater than 1 m in diameter;
Smaller discrete features, such as stake holes, will be 100% excavated; and
Structures will be 100% excavated.
3.5 Recording
Each trench will be given a unique site code, which will be written on all records, drawings, artefact bags and sample containers.
All archaeological remains will be recorded in plan using electronic survey equipment. The resultant digital dataset will be utilised to compare the position of any identified archaeological remains with the geophysical survey.
All survey points used will be accurately tied into the OS National Grid.
Each trench will have a unique number, as indicated on the trench location plan, and will be recorded on an individual trench record sheet. A full written, drawn and photographic record will be made of each trench even where no archaeological features are identified.
A measured long section will be hand-drawn, at a scale not less than 1:50, for each trench.
A full written and photographic record will be made of all archaeological features and deposits (contexts) with each context given a unique number and described on a separate record sheet. A context register, with brief details, will also be kept during the archaeological work.
In addition to the electronic survey of all features, as a minimum, all interventions and areas of detailed archaeology will be planned by hand, using tape measures.
Hand drawn plans and sections of features will be produced at an appropriate scale (normally 1:20 for plans and 1:10 for sections) with Ordnance Datum heights recorded in metres, correct to two decimal places. Each drawing will be given a unique drawing number. A drawing register, with brief details, will also be kept throughout the archaeological works.
A photographic record will be maintained. Photographs will be taken of each trial trenching area and all features. These will include a scale, identification board and north arrow. As a minimum, a 35 mm format for photographs will be used in both monochrome and colour, and these will be supplemented by digital photography, where appropriate.
In addition to records of archaeological features, general digital photographs recording the context of the trial trenches and work in progress will also be taken.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 7 Issue 2 - Final
3.6 Artefact recovery
Artefacts from the trenches will be collected and labelled with the unique site code and context number of the deposit in which it was recovered. All non-modern artefacts will be stored and processed in a manner appropriate to the material to minimise further deterioration.
Each ‘significant find’ will be recorded three dimensionally using electronic survey equipment to an accuracy of ± 100 mm, and assigned a ‘Special Finds’ number. Similarly, if artefact scatters are encountered these should be also recorded three dimensionally. Bulk finds will be collected and recorded by context.
All archaeological artefacts that are collected from the trench that do not clearly belong to a particular context will be recorded as unstratified and assigned the topsoil context number.
Where necessary, the artefacts will be stabilised, conserved and stored in accordance with the guidelines of the United Kingdom Institution of Conservators (UKIC). Artefacts will be properly conserved after excavation and will be stabilised for storage. If necessary, a conservator will visit the site to undertake ‘first aid’ conservation treatment.
All finds and environmental samples will be processed (cleaned and marked) as appropriate. Each category of find or environmental/industrial material will be examined by a suitably qualified archaeologist or specialist and the results incorporated into the report.
3.7 Environmental sampling
The AMEC archaeologist will notify the English Heritage Regional Advisor for Archaeological Science of the commencement of the project. The Regional Advisor for Archaeological Science will be consulted regarding the sampling strategy proposed by the Contractor. Provision will be made for the recovery of material suitable for scientific dating.
Environmental samples will be collected from any deposit where it is expected that worthwhile environmental evidence may be recovered. Such deposits may include waterlogged and burnt contexts.
Any samples collected must come from appropriately cleaned surfaces, be collected with clean tools and be placed in clean containers. They will be adequately recorded and labelled and a register of all samples will be kept. Samples should be stored appropriately in a secure location prior to being sent to the appropriate specialist.
The sampling strategy, analysis of samples and subsequent reporting will follow best practice as recommended by English Heritage (2002).
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 8 Issue 2 - Final
3.8 Human remains
If any human remains are discovered during the trial trenching, excavation will only take place after a licence is obtained from the Ministry of Justice under the Burials Act 1857, and will take place in accordance with the appropriate Environmental Health regulations.
3.9 Treasure
Any recovered artefacts that are designated Treasure as defined by the Treasure Act 1996 will be treated in accordance with said Act. All Treasure will be reported to H. M. Coroner and the AMEC archaeologist will be informed.
Any Treasure will be removed to a secure store. Where removal cannot be effected on the same working day as the discovery, suitable security measures must be taken to protect the finds from theft.
3.10 Reporting
Upon the completion of the trial trenching an interim statement will be prepared and submitted to AMEC for issue to EDF, summarising the results of the works.
The reporting of the trial trenching will be commensurate with the results, and will be produced in accordance with the Institute for Archaeologists Standards and Guidance for Field Evaluation (IfA, 2008).
As a minimum the report will include:
An EDF title block sheet;
a QA sheet detailing as a minimum title, author, version, date, checked by, approved by;
a non-technical summary;
introduction: to include site codes, project number, planning reference number, dates and grid references;
site location and description;
topography and geology;
archaeological and historical background;
methodology;
aims and objectives;
results (to include full description, assessment of condition, quality and significance of the remains);
a statement of the significance of the results in their local, regional and national context cross referenced to the regional research agendas, as appropriate;
references;
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 9 Issue 2 - Final
general and detailed plans showing the location of the trenches accurately positioned on an OS base map (to a standard scale);
detailed plans and sections illustrating archaeological features (to a standard scale);
photographs of the site, the trenches and archaeological features; and
catalogue and location of the site archive.
A Preliminary (draft) report will be issued for review by EDF/AMEC prior to agreement and issue of the final reports. It is anticipated that issue of final reports should follow within one week of comments being provided on the preliminary reports.
Ten bound copies, one unbound master-copy and a digital version of the approved report will be submitted to EDF offices in France and UK.
A project CD shall be submitted containing image files in JPEG or TIFF format, digital text files shall be submitted in Microsoft Word format, and illustrations in AutoCAD format. A fully collated version of the report shall be included in PDF format.
A hard copy of the report will be lodged with Somerset Historic Environment Record (HER) upon the completion of the EIA.
The report on the results of the trial trenching will inform the EIA and Environmental Statement that will be submitted in support of the application for the proposed new power plant. The Contractor will be required to liaise with AMEC to assist with the development of a mitigation strategy for inclusion in the Environmental Statement.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 10 Issue 2 - Final
4.0 ARCHIVE PREPARATION AND DEPOSITION
The archive will consist of the documentary and digital records and archaeological material generated during the fieldwork. All records and materials produced will be quantified, ordered, indexed, marked with the unique project, site and context number and internally consistent. The archive will be kept secure at all stages of the project.
The Contractor will, prior to the start of fieldwork, liaise with the Somerset County Museum (known as Museum of Somerset from 2010) to obtain agreement in principle to accept the material, documentary, digital and photographic archive for long-term storage and curation.
The Contractor will be responsible for identifying any specific requirements or policies of the museum in respect of the archive, and for adhering to those requirements. The archive will conform to the standards required by Somerset County Museum (Museum of Somerset).
The archive will be stored in a suitable secure location by the Contractor until it is deposited with Somerset County Museum.
The deposition of the archive forms the final stage of this project. The Contractor shall provide the AMEC archaeologist with copies of communication with the recipient museum and written confirmation of the deposition of the archive. The AMEC archaeologist will address the transfer of ownership and copyright issues.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 11 Issue 2 - Final
5.0 MONITORING, PROGRESS REPORTS AND MEETINGS
The archaeological investigation will be subject to regular monitoring visits by the AMEC archaeologist, who will have unrestricted access to the site, site records and any other information.
The work will be inspected to ensure that it is being carried out to the required standards and that it will achieve the stated aims and objectives.
Weekly written progress reports (via e-mail each Monday, by 10am) will be provided to the AMEC archaeologist by the Contractor during the main phase of fieldwork and the post-excavation phase.
The Contractor will only accept instruction from EDF and the AMEC archaeologist.
Progress meetings between EDF, the AMEC archaeologist and the Contractor will be held on site during the course of the trial trenching. The Somerset County Council Development Control Archaeologist shall be invited to attend. These meetings will be arranged by AMEC.
Where necessary to achieve the objectives of the investigation within the overall project programme, variations to the scope of works will be agreed on site at progress meetings, as appropriate.
The Contractor will submit revised fee proposals for approval by EDF, if required.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 12 Issue 2 - Final
6.0 CONFIDENTIALITY AND PUBLICITY
Detailed information regarding the development is not yet in the public domain and the archaeological works may attract interest.
In the event of any enquiries by the public, the Contractor will refer all enquiries to EDF without making any unauthorised statements or comments.
The Contractor will not disseminate information or images associated with the project for publicity or information purposes.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 13 Issue 2 - Final
7.0 COPYRIGHT
The Contractor shall assign copyright in all reports and documentation/images produced as part of this project to EDF. The Contractor shall retain the right to be identified as the author/originator of the material. This applies to all aspects of the project. It is the responsibility of the Contractor to obtain such rights from sub-contracted specialists.
The Contractor may apply in writing to use/disseminate any of the project archive or documentation (including images). Such permission will not be unreasonably withheld.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 14 Issue 2 - Final
8.0 RESOURCES AND TIMETABLE
All archaeological personnel involved in the project should be suitably qualified and experienced professionals. Site assistants should have a minimum of six months excavation experience.
It is currently anticipated that works will commence in April/May 2010.
All equipment and tools required by the Contractor will be supplied by the Contractor.
The Contractor shall provide immediate notice to the AMEC archaeologist should any agreed programme date not be achievable.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 15 Issue 2 - Final
9.0 HEALTH AND SAFETY
The archaeological Contractor will act as Principal Contractor for the works, which will be undertaken in accordance with The Construction (Design and Management) Regulations (CDM) 2007.
The Contractor will prepare a Construction Phase Plan, Safety Plan, Method Statements and task-specific risk assessments for the works.
All personnel and visitors to the site will adhere to the site safety policies at all times and shall wear the correct safety clothing and equipment.
The following PPE will be worn at all times on site:
High visibility vest / jacket; Hard hat; Protective toecap boots, with ankle support; Gloves; and Light eye protection.
In undertaking the work the archaeologists are to abide by all statutory provisions and by-laws relating to the work in question, especially the Health and Safety at Work Act 1974.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 16 Issue 2 - Final
10.0 GENERAL PROVISIONS
No variation from, or changes to, the WSI will occur except by prior agreement with EDF, AMEC and the Somerset County Council Development Control Archaeologist.
Access for parking and site welfare facilities shall be agreed between EDF and the Contractor prior to entering the site.
EDF’s contractor for the works may be required to make provision for the security of the site if sensitive archaeological remains are discovered.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 17 Issue 2 - Final
11.0 REFERENCES
AMEC, 2010, Junction 23 Associated Development Cultural Heritage Desk-Based Assessment, unpublished client report.
BGS, 1984, Taunton Sheet 295, Solid and Drift Edition, 1:50 000 Scale, British Geological Survey.
English Heritage, 2002, Environmental Archaeology: A guide to the theory and practice of methods, from sampling and recovery to post-excavation, Centre for Archaeology Guidelines 2002:01.
IfA, 2008, Standard and Guidance for Field Evaluation, Institute for Archaeologists.
SCC, 2008, Heritage Service Archaeological Handbook, Somerset County Council.
Valentin, J. and Hawkes, J. 1993 Archaeological Evaluation at Dunball, near Bridgewater, Somerset: AC archaeology unpublished client report.
Written Scheme of Investigation - Archaeological Trial Trenching at Junction 23 EDF Access
AMEC 15928/TR/00049 Issue 2 - Final
FIGURES
1
31
15
16
50
52
51
27
28
14
13
2114
6
7
41
8
12
12
12
3
9
57
12
24
29
19
4
34
12
36
2
17 33
37
35
25
40
26
22
18
22
23
32
11
1039
30
56
42
45
47
49
43 44
46
48
55
5453
5
38
36
204
3
329000 330000 331000 332000 333000 33400013
900
0
139
000
140
000
140
000
141
000
141
000
142
000
142
000
Legend Orientation
Client Name
Project
Title
Junction 23 Off-site Associated Development
Figure 1: Site Location and Archaeological Baseline
Drawn
Date
Drawing Number
Checked Approved
Rev Scale
Sheet Size
SE FS SS
12/04/10 A3
5788001898_ARCH_088 A
0 250 500125
Meters
Coordinate System: British National Grid. © Crown Copyright 2009. All rights reserved. Ordnance Survey Licence Number 100043677
AMEC Earth & Environmental UK LtdUnit 1, Trinity Place, 29 Thames Street,
Weybridge, Surrey KT13 8JG, UK 1:15,000
Site Boundary
Study Area
Archaeological Site
Archaeological Site
Archaeological Site
Scheduled Monument
EDF Development Ltd.
Bath
Yeovil
Hinkley
Bristol
Taunton
Newport
Cardiff
Melskham
CanningtonBarnstaple Bridgwater
Alverdiscott
Burnham-on-sea
Somerset
Devon
Dorset
North Somerset
Bristol
BridgendCardiff
South Gloucestershire
Bath and North East Somerset
Vale of Glamorgan
4
9
3
6
8
5
12
7 11
35
18
44
53
14
48
19
42
43
17
47
49
21
13
50
45
15
46
41
22
36
1216
39
37
52
38
40
10
51
20
26
27
34
23
30
322528
29
24 31
33
330000 330400 33080014
100
0
141
000
141
200
141
200
141
400
141
400
Legend Orientation
Client Name
Project
Title
Junction 23 Off-site Associated Development
Figure 2: Trial Trench Locations
Drawn
Date
Drawing Number
Checked Approved
Rev Scale
Sheet Size
SE SS SS
12/04/2010 A3
5788001898_ARCH_087 A
0 50 10025
Meters
Coordinate System: British National Grid. © Crown Copyright 2009. All rights reserved. Ordnance Survey Licence Number 100043677
AMEC Earth & Environmental UK LtdUnit 1, Trinity Place, 29 Thames Street,
Weybridge, Surrey KT13 8JG, UK 1:3,000
Site Boundary
Trial Trench Location
EDF Development Ltd.
Bath
Yeovil
Hinkley
Bristol
Taunton
Newport
Cardiff
Melskham
CanningtonBarnstaple Bridgwater
Alverdiscott
Burnham-on-sea
Somerset
Devon
Dorset
North Somerset
Bristol
BridgendCardiff
South Gloucestershire
Bath and North East Somerset
Vale of Glamorgan