The high-level sewer—the most northern of the works—ran from Hampstead Heath to Stoke Newington and across Victoria Park, where it joined with the eastern end of the mid-level sewer. The mid-level sewer began in the west at Bayswater and ran along Oxford Street, through Clerkenwell and Bethnal Green, before the connection. This combined main sewer ran to the Abbey Mills Pumping Station in Stratford, where it was joined by the eastern end of the low-level sewer. The pumps at Abbey Mills lifted the effluent from the low-level sewer into the main sewer. This main sewer ran —along what is now known as the Greenway—to the outfall at Beckton.