DOCSLIB.ORG

Project Design for an Archaeological Mitigation on Phase 3B of the Warrington Flood Risk Management Scheme

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Project Design for an Archaeological Mitigation on Phase 3B of the Warrington Flood Risk Management Scheme Project Design for an Archaeological Mitigation on Phase 3B of the Warrington Flood Risk Management Scheme. Prepared for the Environment Agency By M. Adams August 2015 National Museums Liverpool Field Archaeology Unit, Pilotage Building, Mann Island, Liverpool, L3 1DG. Tel: 0151 478 4260 © Trustees of National Museums Liverpool Contents 1. Introduction .................................................................................................. 1 2. The Sites ...................................................................................................... 2 Woolston Weir (MR1) ................................................................................... 2 Bridge Lane Industrial Estate (MR2) ............................................................ 2 Westy (ML1,2 & 3) ........................................................................................ 2 3. Solid and Drift Geology, and Soils ................................................................ 2 4. Archaeological and Historical Background ................................................... 2 Woolston Weir , Bridge Lane Industrial Estate (MR1 & MR2) ...................... 4 Westy (ML1, 2 & 3) ....................................................................................... 5 5. Review of Previous Phases of Archaeological Intervention ......................... 7 6. Legislation .................................................................................................... 8 7. Aims and Objectives .................................................................................... 8 8. Location of Project ....................................................................................... 8 9. Methodology ................................................................................................ 9 Project Roles ................................................................................................ 9 Pre-Project Planning .................................................................................... 9 Archaeological Risks .................................................................................... 9 Very Low Risk Areas .................................................................................. 10 Low Risk Areas ........................................................................................... 11 Medium and High Risk Areas ..................................................................... 12 General Excavation and Recording Methodologies .................................... 12 10. Reporting ................................................................................................. 13 11. Publication ................................................................................................ 15 12. Archive Preparation and Deposition ......................................................... 15 13. Monitoring ................................................................................................ 15 14. Copyright ................................................................................................. 15 15. Insurances and Health and Safety ........................................................... 16 16. Bibliography ............................................................................................. 16 17. Figures ..................................................................................................... 18 Appendix A: CHER Data ................................................................................ 40 A1: CHER Events ....................................................................................... 40 A2: CHER Listed Buildings ......................................................................... 43 A3: CHER Locally Listed Buildings ............................................................. 49 A 4: CHER Monuments .............................................................................. 51 Executive Summary This document is a project design or method statement for archaeological mitigation during construction of new flood defences in Warrington, Merseyside. It has been prepared for the Environment Agency to inform the archaeological element of the works. The process of delivering this mitigation will be one of a archaeological watching brief, observation and monitoring of ground works. The requirement for these works is indicated by a planning condition imposed on Planning Application 2011/19262 by Warrington Borough Council. In addition to archaeological procedures it addresses the management of communications between the client, their main contractor and the archaeologists on site. It also contains proposals for the reporting and publication of the results of this and past elements of the scheme. The elements of the project and the actions for each site are summarised below: Phase 3b Site Works Groundworks teams to be briefed on general nature of known archaeology of the area and reporting procedures via ‘Tool–Box Talks’. Archaeologists in attendance if an obstruction is encountered which requires exploration Woolston Weir (MR1) or facilitation trenches to be excavated. Groundworks teams to be briefed on general nature of known archaeology of the area and reporting procedures via ‘Tool–Box Talks’. Archaeologists in attendance if an obstruction is encountered which requires exploration Bridge Lane Industrial Estate (MR2) or facilitation trenches to be excavated. Groundworks teams to be briefed on general nature of known archaeology of the area and reporting procedures via ‘Tool–Box Talks’. Archaeologists in attendance if an obstruction is encountered which requires exploration Westy (ML 1, 2 & 3) or facilitation trenches to be excavated. Project Design for an Archaeological Mitigation on Phase 3A and 3 B of the Warrington Flood Risk Management Scheme 1. Introduction 1.1 This document is a project design or method statement for an archaeological watching brief during the construction of new flood defences in relation to Phase 3A and Phase 3B of the Warrington Flood Risk Management Scheme. All elements of the scheme, including those with no known archaeological implications are considered. 1.2 It has been produced by National Museums Liverpool Field Archaeology Unit (NMLFAU) for the Environment Agency (hereafter the Client) in order to satisfy condition 18 of the planning consent (planning Consent 2011/19262) which states; ‘Before development commences on any phase of development (as agreed by condition 1) a programme of archaeological work in accordance with a written scheme of investigation shall be submitted for the written approval of the local planning authority. No development shall commence on that phase until written approval has been obtained for that phase. The programme of archaeological work shall be carried out strictly in accordance with the approved scheme’. 1.3 Full details of the proposals are given in a Written Scheme of Investigation prepared for the client in July 2014 (ch2m 2014) and in summary consist of new flood walls, raising of existing ground levels at Paddington Lock and Paddington Bank, new embankments, a new channel and ponds at the Twiggeries and a new flood embankment and flood wall and localised ground raising at Cinnamon Brow. 1.4 Phase 3 is broken down into a series of elements and will be delivered as two sub- phases; Phase 3A and Phase 3B 1.5 Phase 3A construction is presently taking place within four discrete areas 1.5 to 2 km to the east of the historic core of Warrington as follows: Kingsway Allotments & Paddington Bank Open Space (MR4) Paddington Bank & Paddington Lock (MR3) Twiggeries (PBL1) Cinnamon Brow (SP1) These works were the subject of a separate document prepared in November 2015 and are not discussed further in this document. 1.6 Construction of Phase 3B is likely to start in 2016. 1.7 At present Phase 3B consists of the following elements: Woolston Weir (MR1) Bridge Lane Industrial Estate (MR2) Westy (ML1,2 & 3) 1 Warrington FRMS Phase 3b, Project Design. 1.8 The project described in this document will help establish the nature of archaeological deposits at the site. This will mitigate the impact on archaeologically sensitive remains and generate useful information on the archaeological remains present at the site. This is consistent with national planning policy on archaeology and planning (NPPF) as well as local policies and published guidelines prepared by Historic England. 1.9 The definition of an Archaeological Watching Brief is “a formal programme of observation and investigation conducted during any operation carried out for non-archaeological reasons. This will be within a specified area or site on land ….or underwater, where there is a possibility that archaeological deposits may be disturbed or destroyed. The programme will result in the preparation of a report and ordered archive.” (IFA, 2008). 2. The Sites 2.1 Each of the phases is comprised of discrete working areas which are described separately below. These areas are as delineated in drawings received from the client and shown in Figs 1 and 2. Woolston Weir (MR1) 2.2 Woolston Weir is located c. 4.2 km to the east of Warrington town centre and the works extend for c. 400 m along the right (north) bank of the River Mersey between NGR SJ 653887 and NGR SJ 656888. Bridge Lane Industrial Estate (MR2) 2.3 Bridge Lane Industrial Estate lies on the right (north) bank of the Mersey c. 3.3 km to the east of Warrington at NGR SJ 644 888 centred. The works will extend for c. 450 m along the river bank south
Load more

Recommended publications
  • CHRONICLES of THELWALL, CO. CHESTER, with NOTICES of the SUCCESSIVE LORDS of THAT MANOR, THEIR FAMILY DESCENT, &C
    379 CHRONICLES OF THELWALL, CO. CHESTER, WITH NOTICES OF THE SUCCESSIVE LORDS OF THAT MANOR, THEIR FAMILY DESCENT, &c. &c. THELWALL is a township situate within the parochial chapelry of Daresbury, and parish of Runcorn, in the East Division of the hundred of Bucklew, and deanery of Frodsham, co. Chester. It is unquestionably a place of very great antiquity, and so meagre an account has been hitherto published a as to its early history and possessors, that an attempt more fully to elucidate the subject, and to concentrate, and thereby preserve, the scat• tered fragments which yet remain as to it, from the general wreck of time, cannot fail, it is anticipated, to prove both accept• able and interesting. The earliest mention that is to be met with of Thelwall appears in the Saxon Chronicle, from which we find that, in the year 923, King Edward the Elder, son of King Alfred, made it a garrison for his soldiers, and surrounded it with fortifications. By most writers it is stated to have been founded by this monarch, but the opinion prevails with some others that it was in existence long before, and was only restored by him. Towards the latter part of the year 923, King Edward is recorded to have visited this place himself, and for some time made it his residence, whilst other portion of his troops were engaged in repairing and manning Manchester. These warlike preparations, it may be observed, were rendered necessary in consequence of Ethelwald, the son of King Ethelbert, disputing the title of Edward.
    [Show full text]
  • Wayfarer Rail Diagram 2020 (TPL Spring 2020)
    Darwen Littleborough Chorley Bury Parbold Entwistle Rochdale Railway Smithy Adlington Radcliffe Kingsway Station Bridge Newbold Milnrow Newhey Appley Bridge Bromley Cross Business Park Whitefield Rochdale Blackrod Town Centre Gathurst Hall i' th' Wood Rochdale Shaw and Besses o' th' Barn Crompton Horwich Parkway Bolton Castleton Oldham Orrell Prestwich Westwood Central Moses Gate Mills Hill Derker Pemberton Heaton Park Lostock Freehold Oldham Oldham Farnworth Bowker Vale King Street Mumps Wigan North Wigan South Western Wallgate Kearsley Crumpsall Chadderton Moston Clifton Abraham Moss Hollinwood Ince Westhoughton Queens Road Hindley Failsworth MonsallCentral Manchester Park Newton Heath Salford Crescent Salford Central Victoria and Moston Ashton-underStalybridgeMossley Greenfield -Lyne Clayton Hall Exchange Victoria Square Velopark Bryn Swinton Daisy HillHag FoldAthertonWalkdenMoorside Shudehill Etihad Campus Deansgate- Market St Holt Town Edge Lane Droylsden Eccles Castlefield AudenshawAshtonAshton Moss West Piccadilly New Islington Cemetery Road Patricroft Gardens Ashton-under-Lyne Piccadilly St Peter’s Guide Weaste Square ArdwickAshburys GortonFairfield Bridge FloweryNewton FieldGodley for HydeHattersleyBroadbottomDinting Hadfield Eccles Langworthy Cornbrook Deansgate Manchester Manchester Newton-le- Ladywell Broadway Pomona Oxford Road Belle Vue Willows HarbourAnchorage City Salford QuaysExchange Quay Piccadilly Hyde North MediaCityUK Ryder Denton Glossop Brow Earlestown Trafford Hyde Central intu Wharfside Bar Reddish Trafford North
    [Show full text]
  • Revised Sunday Network
    Revised Sunday Network Bus users are being advised that the following Sunday services will remain largely the same during the day time but with reduced evening journeys. The changes are due to be introduced from Sunday 27 June 2010, although this date is subject to approval by the Traffic Commissioner. General services 1 Warrington – Knutsford Road - Latchford - Westy – Kingsway North – Manchester Road – Warrington (Circular) From Warrington: 1300 1600 1710 2 Warrington – Manchester Road - Kingsway North – Westy - Latchford - Knutsford Road – Warrington (Circular) From Warrington: 1130 1230 1330 1430 1530 1630 3 Warrington – Manchester Road – Martinscroft From Warrington: 0915 0945 then every 30 minutes until 1715 From Martinscroft: 0932 1002 then every 30 minutes until 1732 7 Warrington – Stockton Heath - Cobbs Estate - Grappenhall From Warrington: 0910 1010 1110 1210 1310 1410 1510 1610 1710 From Grappenhall: 0930 1030 1130 1230 1330 1430 1530 1630 1730 15 Warrington – Hood Manor – Meeting Lane – Lingley Green – Park Road – Hood Manor – Warrington (Circular) From Warrington: 0920 1035 1135 1235 1335 1435 1535 1635 1735 16 Warrington – Lovely Lane – General Hospital – Longshaw Street - Dallam From Warrington: 1145 1245 1345 1445 1545 1645 From Dallam: 1157 1257 1357 1457 1557 1657 18A Warrington – Old Hall – Westbrook – Gemini – Callands – Westbrook – Old Hall – Warrington (Circular) From Warrington: 0955 1055 1155 1255 1355 1455 1555 1710 19 Warrington – Winwick Road – Winwick – Croft – Culcheth - Leigh From Warrington: 0858* 0958 1058
    [Show full text]
  • Metrolink Access Guide
    Metrolink Access Guide 2020 How to use this guide Metrolink is designed to be accessible to as many people as possible. Many of its features have been designed to improve access to public transport and make it as easy as possible for our passengers to use. We have produced this guide to help those with specific/additional accessibility requirements to get the best out of the system. For the latest Coronavirus transport information please visit tfgm.com The guide is in four sections. Section 1 General information and background Metrolink accessibility ..................................................................... Page 3 About Metrolink .............................................................................. Page 3 The Equality Act 2010 and Metrolink ............................................. Page 4 Section 2 Planning your Metrolink journey Before you travel ............................................................................. Page 5 Parking for Blue Badge holders ....................................................... Page 6 Metrolink Park and Ride facilities .................................................... Page 6 Metrolink network Park & Ride map ............................................... Page 7 Bicycles and trams ........................................................................... Page 8 Access to Metrolink stops ................................................................ Page 9 Section 3 Journey advice Buying a ticket – ticket machines .................................................... Page
    [Show full text]
  • History of Woolston Www Stpetereschurchwoolston
    History of Woolston – www.stpetereschurchwoolston CATHOLICISM IN WOOLSTON AND RIXTON (1677-1985) Woolston, three miles east of Warrington on the high road to Manchester, received its name from the first lords of the manor. It is a derivation of "sons of the wolf", and first appears in a charter dated about 1180. In the 15th century the manor was acquired through marriage by John Hawarden of Hawarden in Flintshire. Six generations later, Elizabeth daughter of Adam Hawarden, married Alexander Standish of Standish. Their descendants remained until 1870 when the hall was sold. An account of Woolston Hall can be found in Alderman Bennett's book on the old halls around Warrington. In this book we are told that the hall stood isolated among fields, and that it was eventually demolished only in 1947. In that same year, some timber from the priest's landing was made into candlesticks and presented to St Peter's in Woolston. One of the connections with the English Martyrs was through St. Ambrose Barlow who had relatives hereabouts. One of these, Edward Booth, secured a place in the National Dictionary of Biography on account of his expertise as a maker of watches and clocks. Ambrose Edward Barlow, O.S.B., (1585 – 10 September 1641) He assumed the name Barlow and was ordained priest at Lisbon. After ordination he served the mission at Park Hall, Chorley and his published works varied from 'Meteorological Essays' to 'A Treatise of the Eucharist'. He died in 1719. Domestically, Woolston was described as "fertile" yielding good crops of potatoes, turnips, oats, wheat and clover, with its marshy corners devoted to the cultivation of osiers for the manufacture of potato-hampers.
    [Show full text]
  • Delegated Decisions Delegated 12Th August 2020
    Delegated Decisions Delegated 12th August 2020 Appleton Decision Application Location Development description Decision type date number 09/07/2020 2020/36814 181, LONDON ROAD, WARRINGTON, WA4 5BJ Variation of a condition 2 (to substitute the approved Approved with drawing 100F with a revised drawing 100I) & 3 Conditions (Materials) following grant of planning permission 2019/35415 (New dwelling) 27/07/2020 2020/37061 29, Westcliff Gardens, Appleton, Warrington, WA4 5FQ Householder - Proposed Single storey kitchen extension Approved with to side and front elevations Conditions Page 1 Of 21 Produced by Development Services Integrated Support Team - [email protected] - 01925 442819 28/07/2020 Delegated Decisions Delegated 12th August 2020 Appleton. DO NOT USE Decision Application Location Development description Decision type date number NULL 2020/37072 1, FIELD LANE, APPLETON, WARRINGTON, WA4 TPO - x9 Oak Trees in rear garden - Proposed crown Approved with 5JR thin by 20% , Oak tree nearest property - Proposed Conditions removal of lowest two branches and reduce back from property by 1-2 metres lateral branches Page 2 Of 21 Produced by Development Services Integrated Support Team - [email protected] - 01925 442819 28/07/2020 Delegated Decisions Delegated 12th August 2020 Bewsey and Whitecross Decision Application Location Development description Decision type date number 09/07/2020 2020/37001 30, ARPLEY STREET, BEWSEY AND WHITECROSS, Full Planning - Proposed change of use from C4 (6 bed Approved with WARRINGTON, WA1
    [Show full text]
  • Warrington Multi-Modal Transport Model Local Model Validation Report (LMVR) Final Warrington Borough Council & Partners April 2010
    Warrington Multi-Modal Transport Model Local Model Validation Report (LMVR) Final Warrington Borough Council & Partners April 2010 QM Issue/revision Issue 1 Revision 1 Revision 2 Revision 3 Remarks DRAFT – Layout DRAFT – Client Final Final Review Comment Date 20/05/09 18/09/09 10/12/09 20/04/10 Prepared by Joanna Isaac/ Joanna Isaac Joanna Isaac Joanna Isaac Christine Palmer Signature Checked by Paul Speirs Christine Palmer Christine Palmer Christine Palmer Signature Authorised by Mike Batheram Paul Speirs Paul Speirs Paul Speirs Signature Project number 11560060 11560060 11560060 11560060 File reference G:\Development G:\Development G:\Development G:\Development Modelling Modelling Modelling Modelling Projects\Warringt Projects\Warringt Projects\Warringt Projects\Warringt on MMTM on MMTM on MMTM on MMTM WSP Development and Transportation WSP House 70 Chancery Lane London WC2A 1AF Tel: +44 (0)20 7314 5000 Fax: +44 (0)20 7314 5111 http://www.wspgroup.com Model QM Version VISUM Version 10.03.20 Demand Model Tier 1 Demand Model_v3_Final_C3.ver – 29/03/10 Demand Model AM Assignment.ver – 19/03/10 Demand Model IP Assignment.ver – 19/03/10 Filename and Date Demand Model PM Assignment.ver – 19/03/10 Demand Model Tier 2 T2 Demand Model_v2.ver – 14/04/10 AM BY v37 T2_demand Model_AM Assignment_2.ver– 24/03/10 IP BY v37 T2_demand Model_IP Assignment_2.ver– 24/03/10 PM BY v37 T2_demand Model_PM Assignment_2.ver-24/03/10 AM Observed Model AM BY v48_Val_Block Final.ver – 10/12/09 IP Observed Model IP BY v48_v5_Val_Block Final.ver – 10/12/09 PM Observed
    [Show full text]
  • English Hundred-Names
    l LUNDS UNIVERSITETS ARSSKRIFT. N. F. Avd. 1. Bd 30. Nr 1. ,~ ,j .11 . i ~ .l i THE jl; ENGLISH HUNDRED-NAMES BY oL 0 f S. AND ER SON , LUND PHINTED BY HAKAN DHLSSON I 934 The English Hundred-Names xvn It does not fall within the scope of the present study to enter on the details of the theories advanced; there are points that are still controversial, and some aspects of the question may repay further study. It is hoped that the etymological investigation of the hundred-names undertaken in the following pages will, Introduction. when completed, furnish a starting-point for the discussion of some of the problems connected with the origin of the hundred. 1. Scope and Aim. Terminology Discussed. The following chapters will be devoted to the discussion of some The local divisions known as hundreds though now practi­ aspects of the system as actually in existence, which have some cally obsolete played an important part in judicial administration bearing on the questions discussed in the etymological part, and in the Middle Ages. The hundredal system as a wbole is first to some general remarks on hundred-names and the like as shown in detail in Domesday - with the exception of some embodied in the material now collected. counties and smaller areas -- but is known to have existed about THE HUNDRED. a hundred and fifty years earlier. The hundred is mentioned in the laws of Edmund (940-6),' but no earlier evidence for its The hundred, it is generally admitted, is in theory at least a existence has been found.
    [Show full text]
  • 40B Bus Time Schedule & Line Route
    40B bus time schedule & line map 40B Martinscroft - Hollins Green- Latchford Locks - View In Website Mode Lymm, Oughtrington Lane The 40B bus line (Martinscroft - Hollins Green- Latchford Locks - Lymm, Oughtrington Lane) has 2 routes. For regular weekdays, their operation hours are: (1) Hollins Green: 3:20 PM (2) Lymm: 7:03 AM Use the Moovit App to ƒnd the closest 40B bus station near you and ƒnd out when is the next 40B bus arriving. Direction: Hollins Green 40B bus Time Schedule 47 stops Hollins Green Route Timetable: VIEW LINE SCHEDULE Sunday Not Operational Monday 3:20 PM Lymm High School, Lymm Tuesday 3:20 PM Woodlands Avenue, Church Green Wednesday 3:20 PM Grammar School Road, Church Green Thursday 3:20 PM Manor Road, Church Green Friday 3:20 PM Lakeside Surgery, Church Green Saturday Not Operational Dingle Bank Close, Lymm Welfare Centre, Lymm Brookƒeld Cottages, Lymm 40B bus Info Barsbank Lane, Statham Direction: Hollins Green Stops: 47 Massey Brook Lane, Statham Trip Duration: 38 min Massey Brook Lane, Lymm Civil Parish Line Summary: Lymm High School, Lymm, Woodlands Avenue, Church Green, Grammar School M6 Bridge, Booth's Hill Road, Church Green, Manor Road, Church Green, Lakeside Surgery, Church Green, Welfare Centre, Thelwall Bridge, Thelwall Lymm, Barsbank Lane, Statham, Massey Brook Lane, Statham, M6 Bridge, Booth's Hill, Thelwall Laskey Lane, Thelwall Bridge, Thelwall, Laskey Lane, Thelwall, Bell Lane, Thelwall, Pickering Arms, Thelwall, Stanton Road, Laskey Lane, Grappenhall And Thelwall Civil Parish Thelwall, Buntingford
    [Show full text]
  • Warrington: a Landscape Character Assessment
    WARRINGTON: A LANDSCAPE CHARACTER ASSESSMENT Agathoclis Beckmann Landscape Architects Onion Farm Warburton Lane Lymm Cheshire WA13 9TW Prepared 2007 CONTENTS Page No. 1. INTRODUCTION 01 List of Figures 07 2. METHODOLOGY 11 3. LANDSCAPE CONTEXT 15 4. PHYSICAL INFLUENCES ON THE LANDSCAPE 18 5. ECOLOGICAL CONTEXT 26 6. HUMAN INFLUENCES AND THE HISTORIC ENVIRONMENT 33 7. LANDSCAPE CHARACTER TYPES AND AREAS 46 CHARACTER TYPE 1: UNDULATING ENCLOSED 50 FARMLAND AREA 1.A STRETTON & HATTON 54 AREA 1.B APPLETON THORN 63 AREA 1.C WINWICK, CULCHETH, GLAZEBROOK & RIXTON 71 AREA 1.D CROFT 90 AREA 1.E BURTONWOOD 96 AREA 1.F PENKETH & CUERDLEY 105 CHARACTER TYPE 2: MOSSLAND LANDSCAPE 114 AREA 2.A RIXTON, WOOLSTON & RISLEY MOSS 120 AREA 2.B HOLCROFT & GLAZEBROOK MOSS 129 AREA 2.C STRETTON & APPLETON MOSS 137 AREA 2.D PILL MOSS 144 CHARACTER TYPE 3: RED SANDSTONE ESCARPMENT 148 AREA 3.A APPLETON PARK & GRAPPENHALL 153 AREA 3.B MASSEY BROOK 165 AREA 3.C LYMM 170 CHARACTER TYPE 4: LEVEL AREAS OF FARMLAND AND 179 FORMER AIRFIELDS AREA 4.A LIMEKILNS 181 AREA 4.B FORMER BURTONWOOD AIRFIELD 186 AREA 4.C FORMER STRETTON AIRFIELD 192 CHARACTER TYPE 5: RIVER FLOOD PLAIN 197 AREA 5.A RIVER MERSEY/BOLLIN 201 AREA 5.B RIVER GLAZE 215 AREA 5.C SANKEY BROOK 221 CHARACTER TYPE 6: INTER-TIDAL AREAS 230 AREA 6.A VICTORIA PARK TO FIDDLERS FERRY 233 8. LANDSCAPE OVERVIEW AND APPLICATION OF THE REPORT 240 BIBLIOGRAPHY ACKNOWLEDGEMENTS APPENDICES: APPENDIX 1 FIELD STUDY SHEETS (Fig xiiii) APPENDIX 2 PHOTOGRAPHS (Fig xiv) APPENDIX 3 FIELD STUDY & PHOTOGRAPH LOCATION POINTS
    [Show full text]
  • HR Wallingford
    HR Wallingford Draft Final Report R&.D Project BO 1.2.90 Review of Low Velocity Measurement Techniques HR Wallingford August 1991 Zfo([ | a Report EX £395 ■ ENVIRONMENT AGENCY 124475 A'ddrcssrHydriTulics Research L td , Wallingford, Oxfordshire 0X10 8BA, United Kingdom. Telephone: 0491 35381 International+44 491 35381 Telex: 848552 MRSWAL G. Facsimile: 0491 32233 International +- 44 491 32233 Registered in England No. 1622174 This report describes the review of low velocity measurement techniques carried out by HR Wallingford under NRA Research and Development Project BO1.2.90. Information was obtained from all ten NRA Regions on the extent of gauging problems associated with low velocities of flow, and visits were made to all the Regional Offices. Contacts were also made with equipment manufacturers and other external organisations and information was obtained on low velocity measurement techniques. All available methods of flow gauging have been considered with respect to low velocity measurement. Methods which may be suitable have been identified, and information on the use of these methods in NRA Regions has been obtained. Methods of measuring low velocities of flow are recommended, as follows: Continuous measurement: Ultrasonic gauge Electromagnetic gauge Non-continuous measurement: Electromagnetic current meter Further work is recommended to verify the accuracy of these methods for measuring low velocity flows. Recommendations are also given for further work in connection with other methods which may prove to be suitable for low
    [Show full text]
  • Recovery of the Mersey Estuary from Metal Contamination
    University of Plymouth PEARL https://pearl.plymouth.ac.uk 04 University of Plymouth Research Theses 01 Research Theses Main Collection 2004 Recovery of the Mersey Estuary from Metal Contamination Watts, Sarah Jane http://hdl.handle.net/10026.1/2133 University of Plymouth All content in PEARL is protected by copyright law. Author manuscripts are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author. Recovery of the Mersey Estuary from Metal Contamination By Sarah Jane Watts B.Sc. (Hons.), M.Sc. thesis-submitted'tonhcUniversity of Plymouth I in partiaKfuinimentfor_tfle degree of Doctor ofcPhilosophy School of Earth, Ocean and Environmental Science University of Plymouth Drake Circus Plymouth PL4 8AA In collaboration with: UK Environment Agency (North West Region) University of Plymouth Library Item No. Shelfmark Recovery of the Mersey Estuary from Metal Contamination Sarah Jane Watts B.Sc. (Hons,), M.Sc. Abstract The Mersey Estuziry has received significant quantities of industrial wastes and sewage over several decades. Although contaminant loads are reducing and the estuary is showing signs of recovery, the sediment reservoir remains a repository of historical contamination and still contains high concentrations of trace metals and organic compounds. A combination of hydrodynamic, sedimentary and geochemical processes are responsible for maintaining trace metal concentrations at present-day levels. The distributions of trace metals in bed sediments reflect changes in granulometry, differences in POC content and the magnitude of past inputs rather than the locations of point sources in the estuary.
    [Show full text]