Investigation of siltation in the estuary of the river Ribble (EX 281)

This report describes work carried out on behalf of the Port of Preston Authority. It deals with the possibility of improving the shipping channel in the Ribble estuary to Preston Dock and the probable effects on channel depths of the Fylde Water Board's scheme to abstract water from the Upper Ribble and thus reduce fresh water flow.
This main report concerns the collection and anlysis of field data, comparisons of surveys and dredging figures, various calculations and recommendations. It should be read in conjunction with supplementary Report No. EX 280 describing a radioactive tracer experiment carried out as part of the field programme.