The Archaeology of the ‘A11 Corridor'

Results of the ‘A11 Corridor’ Study Area for the Norwich, Thetford and A11 Corridor National Mapping Programme (NMP) Project: English Heritage Project No. 5313

By Alice Cattermole, Ellen Ford, Sarah Horlock, Sophie Tremlett

This illustrated report describes the results and methods of air photo and lidar assessment and mapping for the A11 corridor as part of the broader Norwich, Thetford and A11 Corridor NMP Project. The project was funded by the English Heritage National Heritage Protection Commissions Programme (NHPCP) and carried out by Norfolk Historic Environment Service in 2012 and 2013. The project used English Heritage National Mapping Programme methods and standards.

The report covers the third phase of the Thetford, Norwich and A11 corridor National Mapping Programme (NMP) project. The report includes a review of the sources used and how these and other factors influenced the results. An overview of archaeological results describes the extent, distribution, type and survival of remains. More detailed descriptions of the nature of the archaeological remains are covered in thematic sections. This report concludes with a summary of the role of the data in strategic planning and recommendations for further work.


List of Figures
1. Introduction
1.1 Background to the Project
1.2 A11 Corridor Study Area
1.3 NMP, Planning and Heritage Protection
1.3.1 Using NMP for Planning and Development Control
1.3.2 Heritage Protection and the Role of NMP
1.3.3 The Role of NMP in Land Management and Environmental Stewardship
1.4 Summary of NMP Methodology
1.5 Using Aerial Photographs to Map the Historic Environment
2. Character of the Study Area
2.1 The A11 Study Area
2.2 Topography, Geology and Soils
2.3 Land Use
3. Factors Affecting the Results of the Survey
3.1 NMP Methodology
3.2 Topography, Geology and Soils
3.3 Land Use
3.4 Aerial Reconnaissance, Photo Coverage and Interpretation
3.4.1 Summary of Previous Air Photo Mapping and Interpretation
4. Project Results
3.5 History of Archaeological Investigation and Excavation
4.1 Summary of Overall Results
4.1.1 Prehistoric Funerary monuments
Case Study I: Bronze Age Barrow Cemeteries at Sandpit Hill, Bridgham, Overa Heath, Quidenham, and Linger Hill, Shropham.
4.1.2 Prehistoric Settlement Evidence
Case Study II : Micklemoor Hill (TL98NE NHER 6019)
4.1.3 Roman Landscape and Roman Roads
Case Study III : The Roman landscape at Crownthorpe and Great Ellingham
4.1.4 Medieval Settlement Deserted medieval villages
Case Study IV: Medieval settlement shift surrounding the village of Kimberley Common edge settlement
Case Study V: Common-edge enclosures and routeways around Wattlefield Common Moats
Case Study VI: The relationship between two medieval moated sites (NHER 1056 and NHER 57509) and a possible Roman road (NHER 33952) at Attleborough. Monastic and high status sites
Case Study VII: Medieval monastic site at Wymondham; NMP data combined with other sources
4.1.5 World War Two
Case Study VIII: Snetterton Airfield NHER 9068
Anti-Aircraft Artillery and Defences
5. NMP and Strategic Archaeological Planning
5.1 Implications of Results for Planning, Development Control and Heritage Protection
5.2 Using NMP in Growth Point Areas
6. Conclusions
6.1 Potential of Project Results
6.2 Recommendations for Further Work
6.3 Potential for Publication and Dissemination
Appendix 1. Norfolk NMP Methodology
1. Archaeological Scope of the Survey
2. Sources
3. Digital Transcription
4. Database Records
5. Reports and publications
6. Data Access and Copyright
7. Storage, Data Exchange and Archiving
Appendix 2. Updated Norfolk NMP Methodology
1.0 Major Alterations
1.1 Time Keeping
1.2 Use of Rectified Images
1.3 Use of Google Earth Images
1.4 Mapping at 1:2500 scale
1.5 Database Records
1.6 Descriptive Records
1.7 Indexing
1.8 Scope/Sphere of Interest
2.0 Minor Alterations
2.1 NHER and EHA Information
2.2 Historic Maps
2.3 Note Making
2.4 Reuse of Control Points for Rectification
2.5 Mapping More Immediately
2.6 Source References
3.0 Working Processes
3.1 Quality Assurance
3.2 Data Entry
4.0 Further Considerations
4.1 Event Records and Metadata
4.2 NLA Planning Team and Commercial Enquiries


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