Footpath KF4 which runs from Mill Lane, Cogenhoe to Whiston Lock, is obstructed by substantial overgrowth close to the Oxbow Lake on the River Nene. This seems to have resulted from the gravel workings moving west. There is no signage that the footpath has been temporarily diverted or closed. It is clear from Mill Lane until the farm track to Roe Farm is reached but unclear thereafter. This was first discovered by me on Thursday 10th June but must have been the situation for some time as the vegetation is well-grown.