What was city school is built on the area where the gravel washery was and the playing fields are over the gravel pit, the pit was later used as land fill, general house hold waste amongst others was put in there, it stopped being a waste dump in about 1971 and Skew bridge took over, the city school playing fields keep subsiding because of the decaying waste, but no one dare dig too deep because of asbestos and other pollutants that may be there