Settling the Ebbsfleet Valley: High Speed 1 Excavations at Springhead and Northfleet, Kent, the Late Iron Age, Roman, Saxon and Medieval Landscape, Volume 4

This volume presents specialist reports, and illustrations, on the Saxon and later finds and environmental remains recovered during archaeological investigations in the Ebbsfleet valley, near Gravesend, Kent. It is the fourth part of a four-volume publication on investigations at Springhead and Northfleet, undertaken in connection with engineering works for Section 2 of the Channel Tunnel Rail Link (CTRL), now High Speed 1. The archaeological discoveries made during HS1 Section 2, which range in date from the late Iron Age to the medieval period, are reported in Volume 1. Specialist reports on the Iron Age and Roman artefacts are reported in Volume 2, while those on the Iron Age and Roman human bone, and faunal and environmental remains are reported in Volume 3; additional data is available via the website (http://owarch.co.uk/ hs1/springhead-northfleet/). These reports have been prepared by the Oxford Wessex Archaeology Joint Venture in conjunction with Rail Link Engineering for Union Railways (North) Limited (URN). High Speed 1 is the new high-speed railway linking London mainline stations to the Channel Tunnel. Section 1 of HS1, running from the tunnel portal at Folkestone, passes through Kent to Pepper Hill near Gravesend, whilst Section 2 continues the line under the Thames at Swanscombe and then runs through Essex and East London to London St Pancras. The massive engineering and construction project necessitated one of the largest programmes of archaeological works ever undertaken in Britain. Deskbased assessment was followed by extensive evaluation, comprising field walking, trial trenching, test pitting and borehole investigation. This allowed HS1’s impact on the finite archaeological resources along the route to be assessed and mitigated. Where archaeological sites could not be bypassed, or preserved in situ, excavations were undertaken in advance of construction. The principal archaeological work for Section 1 took place in 1998– 2001, while that for Section 2, commissioned by URN, took place between September 2000 and March 2003. Construction work relating to Section 2 in the Ebbsfleet valley included HS1 itself, Ebbsfleet International Station and associated access roads, and a connecting line to the existing North Kent Line. Oxford Archaeology undertook detailed excavation and a watching brief on land south of Northfleet, centred on NGR 516413 174196, towards the north end of the valley, while Wessex Archaeology undertook detailed excavation, strip, map and sample excavation, evaluation and a watching brief on various sites around the south end of the valley, at Springhead, centred on NGR 618000 727500. Following completion of the HS1 programme of work in 2003, there have been further, sometimes extensive investigations within and adjacent to the Ebbsfleet valley, in advance of infrastructure works and housing and commercial developments. Although these have revealed Palaeolithic and other early prehistoric remains, as well as further discoveries of late Iron Age, Roman, and Saxon date, it is not anticipated that any major revisions will be required to what is presented in this publication. The four volumes of this publication comprise one of two separate archaeological studies reporting on the HS1 Section 2 excavations in the Ebbsfleet valley. The other publication, on Prehistoric Ebbsfleet, focuses on Palaeolithic, Mesolithic, Neolithic, Bronze Age and earlier Iron Age activity. The present publication, Springhead and Northfleet, concentrates on Roman and later activity, but also takes into account the late prehistoric origins of the Roman occupation of the area. The overlap with the Prehistoric Ebbsfleet study, however, is slight as the most important later prehistoric remains – the late Iron Age ritual or ceremonial activity near the Ebbsfleet spring at Springhead – are outside the period covered by the Prehistoric Ebbsfleet study. The Springhead and Northfleet publication reports on three major excavations, a