Title: |
The Cannon Footbridge. Pedestrian Access Linking the City of London and the London Borough of Southward. An Archaeological Desk-Based Assessment |
Number of Pages: |
30 |
Biblio Note |
Please note that this is a bibliographic record only, as originally entered into the BIAB database.
The ADS have no files for download, and unfortunately cannot advise further on where to access hard copy or digital versions.
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Publication Type: |
Report
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Abstract: |
It was proposed to open a footbridge on the western side of the Cannon-Street rail bridge linking the London Borough of Southwark to the City of London. Outline plans indicated that excavations would be required for the foundations of the escalator and the lift pit at both ends of the bridge. The depth of these was unlikely to exceed 1.20m for the escalator pit and 1.80m for the lift shaft. Within the excavated pits it was proposed that a 800mm thick pile cap would be supported by four 450mm piles of 20m length. In addition to the excavations for lift and escalator shafts, the construction of the support platforms at either end of the bridge would require the sinking of 16 additional 450mm piles, again of 20m length. Both ends of the footbridge were located in areas of known antiquity, as shown in archaeological, documentary, aerial photographic and cartographic sources. At the northern (City) end of the bridge, the greatest archaeological potential was identified as being for the medieval period when the site lay adjacent to the Hanseatic Steelyard and for the post-medieval period when the riverside wall and associated consolidation deposits were formed. At the southern (Southwark) end of the bridge, the greatest archaeological potential was identified as being for the prehistoric period, particularly any evidence of peat or associated deposits, and for the late medieval and early post-medieval periods when the present-day riverfront defences and ground consolidation deposits were formed. The assessment was unable to establish the existence of any part of the Clink Prison in close vicinity to the southern development site. The first documented record of the prison was 1509 and it seemed probable it formed part of the Winchester Palace complex further to the east along Clink Street. The assessment was unable to clarify from documentary evidence alone the full extent of the footprint of the 19th century railbridge foundations in either the City or Southwark. Due to the closeness of the proposed groundworks to the standing structure, this may have been an important factor as to whether archaeological deposits had survived. The assessment suggested that ground investigations are necessary in these areas to establish the extent of earlier truncation. [Au(abr)] |
Author: |
Kevin Wooldridge
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Publisher: |
Pre-Construct Archaeology Limited
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Year of Publication: |
2001
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Locations: |
Location - Auto Detected: |
Southwark |
Location - Auto Detected: |
Winchester Palace |
Location - Auto Detected: |
London Borough of Southwark |
Location - Auto Detected: |
Clink Street |
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Subjects / Periods: |
MEDIEVAL
(Historic England Periods)
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Medieval (Auto Detected Temporal) |
Prehistoric (Auto Detected Temporal) |
Postmedieval (Auto Detected Temporal) |
19th Century (Auto Detected Temporal) |
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Note: |
Date Of Issue From:
2001
Date Of Coverage From:
01
Date Of Coverage To:
01
Editorial Expansion:
Site name: THE CANNON FOOTBRIDGE Study area: Investigation type: Desk-based District: City of London, Southwark Monument: Ngr: TQ32538066, TQ32488043 Parish: Postcode: EC4R3TQ, SE1 9DN
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Source: |
BIAB
(Archaeological Investigations Project (AIP))
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Created Date: |
19 Jan 2009 |