During the Second World War, Sheffield Corporation realised that the tip they were using at Kilnhurst for the dumping of sewage sludge was nearly full, and so bought land on which to establish a new tip beside the railway line that ran to Silverwood Colliery. Tenders for the supply of railway tracks were let in March 1946, while concrete boundary posts and fencing were erected by Tarmac Limited. The first trains of waste from Blackburn Meadows sewage treatment works to the Thrybergh tip began arriving in January 1948.