In the woods just to the North of Kildale are the remains of a large weir.
The first OS Map from 1856 and subsequent editions marks this area as “Old Fish Ponds”
A great flood is recorded to have taken place in Kildale in 1840 by the breaking of a dam at Kildale Hall.
Although I cannot say for sure, this seems the likely the location of that event as the river now flows to the North around the old weir.
Shall be visiting this place sometime soon.
Just took some pictures of this and was just going to send you them, but as usual your on the ball Chris, any info on bleach mill about half a mile down stream?
Bri