Have a field and on the opposite site of the road is a house which flooded last year (as did many in this particular extreme event). It sits a good 30 cm lower than the road already and the ditch/pipe which deals with their excess water goes under the road and into a ditch which goes away from the road alongside our field. The homeowner seems to think I should be cutting out the hedge growth and cleaning the ditch out annually. Do we have any responsibility for this water or any obligation to clean the ditch out other than our normal routine maintenance (which isn't annual)?