UAV Survey, Hulk Recording and Geoarchaeological Auger Survey, Boston Barrier, Boston, Lincolnshire (OASIS ID: wessexar1-300676)

Alex Brown, Stephanie Said, Richard Milwain, 2018

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https://doi.org/10.5284/1046309
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Alex Brown, Stephanie Said, Richard Milwain (2018) UAV Survey, Hulk Recording and Geoarchaeological Auger Survey, Boston Barrier, Boston, Lincolnshire (OASIS ID: wessexar1-300676) [data-set]. York: Archaeology Data Service [distributor] https://doi.org/10.5284/1046309

Introduction

UAV Survey, Hulk Recording and Geoarchaeological Auger Survey, Boston Barrier, Boston, Lincolnshire (OASIS ID: wessexar1-300676)

Wessex Archaeology was commissioned to undertake a programme of archaeological works including UAV survey, hulk recording and geoarchaeological auger survey, to be carried out in advance of dredging activities required for the construction of a new flood barrier in Boston, Lincolnshire.

The aims and objectives of the UAV survey were:

  • To replace a walkover survey of the foreshore thereby minimising risks
  • To identify the presence of any possible archaeological structures, remains or layers visible on the foreshore surface at low water
  • To make a judgement as to the likely nature of such structures, remains or layers
  • To recommend a suitable course of action for investigation or otherwise prior to or during construction works
  • To record the hulks identified as laying within the Sites (numbered Hulks 5 and 6 in a previous survey) to the equivalent of Level 2 building recoding standard (HE 2016)

The aims and objectives of the auger survey were:

  • To obtain auger samples through the underlying superficial deposits
  • Interpret the probable environments represented
  • Determine the importance of the deposits, with regard to their archaeological and Palaeo-environmental potential
  • Photograph (where possible) any features of potential archaeological or historic interest flagged up by the UAV survey
  • Make suitable proposals for further work if appropriate

Features identified from the UAV survey include those associated with a late 19th/ early 20th Century rifle range. The survey predominantly recorded features of low archaeological significance, such as mooring posts and foreshore debris. Two ships' hulks in the intertidal zone likely to be local fishing craft or barges were recorded using photogrammetric methods. Precise dating is not possible without further work, but both are likely to be of 19th-20th Century date, no finds were recovered.

A total of 54 hand auger points was sampled to a maximum depth of <2.32m across the three geoarchaeological sampling areas (Sites 1-3). The sediments cored in the hand auger survey were largely recorded as silty clay; variations of sand, silt and clay were encountered across all three sites indicative of changeable water-flow, as might be expected from an active intertidal foreshore. Although occasional in-washed organics were recorded, there was a general paucity of the deposits which could be considered to have a significant archaeological and palaeo-environmental potential. No peat layers were recorded, and nothing indicative of a well-preserved stabilisation horizon was found to be present. No deposits suitable for radiocarbon dating were recorded, and thus no samples were taken.