Mapledurham Fish Pass, Mapledurham, Berkshire

Oxford Archaeology was commissioned by the Environment Agency to
undertake a watching brief at the site of a new bypass channel around
Mapledurham weir and lock to allow fish and eels to migrate along the river
system. The fieldwork was undertaken on an intermittent basis between 26th
July and 7th September 2021.
No features or artefacts of archaeological significance were revealed during
the course of the construction work. However, a waterlogged peat deposit was
revealed at the base of a deep alluvial sequence and was subsequently
radiocarbon dated to the late Neolithic period. The peat represents the edge
of a former channel that flowed to the south of the site and the present course
of the river Thames