& Thames Junction Railway in the 1830s and subsequently much was culverted to take the West London Line along its course in 1859–63. This railway route links Clapham Junction to Willesden Junction via Kensington Olympia. Only the lower reach remained in use, supplying coal to Sands End gas works and later to Lots Road Power Station. The stream was visible as a surface river on the west side of Little Wormwood Scrubs on Ordnance Survey maps pre-1930 by which time surface water drains had been introduced, some of which fed the sewer, others which conveyed surface water separately. Its depression has been conveniently used since the 19th century and rise of the water closet for the sanitation of the area by building a combined sewer underneath it and to prevent flooding, to construct where the Metropolitan Board of Works and London Boroughs have found affordable, separate surface water drains leading to the Thames. See also Tributaries of the River Thames List of rivers in England References Tim Bradford 2004, 'The Groundwater Diaries', Flamingo, London, Ed Glinert 2003, 'The London Compendium', Allen Lane, London, External links Counter's Creek: In Search Of London's Unknown River Rivers of London Canals in England Canals in London Canals opened in 1828 Subterranean rivers of London 1CountersCreek History of the London Borough of Hammersmith and Fulham