Brennan, N. (2021). Southsea Castle, Portsea Island, Hampshire: GI Works Archaeological Watching Brief. Wessex Archaeology. https://doi.org/10.5284/1090242. Cite this using datacite

Title
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Title:		 Southsea Castle, Portsea Island, Hampshire: GI Works Archaeological Watching Brief
Series
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Series:		 Wessex Archaeology unpublished report series
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Downloads:
wessexar1-415928_1.pdf (5 MB) : Download
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DOI
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DOI
https://doi.org/10.5284/1090242
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Publication Type:		 Report (in Series)
Abstract
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Abstract:		 Wessex Archaeology was commissioned by the Eastern Solent Coastal Partnership to carry out archaeological monitoring of geotechnical investigations as part of design work for the Southsea Coastal Defence Scheme (centred on National Grid reference 464327, 97976). These additional GI works are within or adjacent to the Scheduled Monument Boundary of Southsea Castle (list entry 1001869) and as such required Scheduled Monument Consent. The monitored works consisted of thirteen trial pits and four rotary core boreholes. The watching brief was undertaken between 13-16 July 2020 with additional coring undertaken 21-22 September 2020. The ground investigations, though limited in their extent, were able to provide information relating to the survival of areas of an earlier promenade surface and information on the outer construction of the counterscarp tunnels. These investigations suggest that the tunnels are encased in a substantial masonry superstructure which includes the seaward side and roof of the feature. This is situated within redeposited storm beach deposits which are likely to form part of the basis of the redesigned sea defences which were constructed at the same time. Several areas of limestone cobbling beneath the current surfacing were located and considered to be the remains of the 19th-century promenade. Both the trial pits and GPR survey highlight that the degree of preservation of this surface is varied.
Author
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Author:		 Naomi Brennan ORCID icon
Publisher
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Publisher:		 Wessex Archaeology
Other Person/Org
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Other Person/Org:		 Historic England (OASIS Reviewer)
Portsmouth City HER (OASIS Reviewer)
Year of Publication
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Year of Publication:		 2021
Locations
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Locations:
Site: Southsea Castle, Portsea Island
County: Hampshire
District: Portsmouth
Parish: PORTSMOUTH
Country: England
Grid Reference: 464327, 97976 (Easting, Northing)
Subjects / Periods
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Subjects / Periods:
WATCHING BRIEF (Event)
POST MEDIEVAL (Historic England Periods) PATH (Monument Type England)
POST MEDIEVAL (Historic England Periods) TUNNEL (Monument Type England)
Identifiers
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OASIS Id: wessexar1-415928
OBIB: report 118666.03
Note
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Note:		 A4 client report
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Created Date
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Created Date:		 29 Oct 2021