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Borrowash Weir

A clump of vegetation trapped on the lip of the weir creates a parting of the flow.

As can be seen this weir maintains a height four to five feet upstream which feeds the complex series of channels to the north. The last of which rejoins the river to the east of Borrowash bridge.

I suspect that the "natural" flow of the river once followed that northerly path forming a meander and that the main flow over the weir is a man-made channel cutting through the neck of that meander.