Wessex Archaeology (WA) were contracted by East Anglia ONE Limited (EAOL) to undertake an archaeological assessment of geophysical data acquired from two river crossing points (River Deben and Martlesham Creek) of the proposed East Anglia ONE onshore cable route. This was undertaken as part of continued assessments ahead of the proposed East Anglia ONE offshore windfarm development. This assessment was undertaken in advance of a proposed geotechnical sampling campaign, which is to involve the acquisition of boreholes and cone penetration tests (CPTs) from both river crossing sites. A sequence of shallow geological deposits of possible archaeological and palaeoenvironmental potential were identified within the western half of the study area. Within the mapped limits of these deposits, two boreholes (OWB-4 and OWB-8) are currently planned of which borehole OWB-4 would sample the full sequence of deposits and is therefore of particular archaeological interest.