A series of wooden bridges and timber structures were constructed across this channel between the Middle Bronze Age and Late Iron Age which influenced local sedimentation patterns, fluvial energy and competency within the channel. A number of erosive events coupled with inwashing from the clearance of the last vestiges of woodland for agriculture into an active channel were identified.
During the Roman period, flow along the Thames channel ceased, resulting in a pond-like feature in which peaty silts rapidly accumulated. This phase of ponding was punctuated by renewed channel activity in which inorganic carbonate sediments rich in ferrimagnetic minerals were deposited. This coincides with a major peak in cereal cultivation and related catchment disturbance of soils because of ploughing with associated runoff and inwash of soils associated with flooding.
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