passing through spalding, where most of the flow is diverted through the coronation channel, the town is protected by marsh road sluice and a sea lock to the east. below the town, it is approached by vernatt's drain, which runs parallel to the river carrying water pumped from deeping fen, and is crossed by the a16 road bridge. nearby is pinchbeck marsh pumping station, which houses the last beam engine and scoop wheel to be used in the fens for land drainage. it was built in 1833, and ran until 1952, when it was replaced by electric pumps. it now forms part of a museum of land drainage run by the welland and deepings internal drainage board, in partnership with south holland district council. vernatt's drain passes through a sluice to join the river, while the sluice that protects the entrance to the river glen is navigable, to allow boats to reach tongue end, some upstream from its mouth. there are pumping stations for sea dike and lords drain, and the outfalls of the risegate eau and five towns drainage channels before the final bridge at fosdyke is reached. after it is joined by the holbeach river, it is bordered by salt marshes, and finally flows into the wash at "the cots" in "fosdyke wash".