River Lymn

River Lymn
The weir at Mill Farm, Partney
Location
Country	England
Counties	Lincolnshire
Physical characteristics
Source
• location	Belchford
• elevation	300 ft (91 m)
Mouth	Steeping River
• location	Gibraltar Point

v t e River Lymn
Legend
Source on Belchford Hill Source on Castcliffe Hill Salmonby lake West Road, Tetford (right) Tetford Mill Double Dike Stockwith Mill Stockwith Mill Bridge A158 Aswardby Bridge A16 Partney Bridge B1195 Halton Bridge Lady Wath's Beck Boston - Skegness railway Steeping River + railway The Lymn Clough Bridge, Firsby Clough Warth's Bridge Bell Water Drain, Thorpe Culvert PS Thorpe Culvert Bridge Wainfleet Relief Channel Bycroft's Bridge Cowcroft Drain Crow's Bridge B1195 Salem Bridge (left) Croft Lane Pumping Station Crown Farm Pumping Station A52 bridges, Wainfleet All Saints Boston - Skegness railway Steeping River or Wainfleet Haven Haven House Sluice Burgh Sluice Relief Channel Wainfleet Clough outfall Burgh Sluice Cow Bank Drain Pumping Station Gibraltar Point Nature Reserve Gibraltar Point Pumping Station North Sea

The River Lymn is a river in Lincolnshire, England. It rises in the Wolds on the eastern slope of Castcliffe Hill in Fulletby parish. It flows south-eastwards to the Lincolnshire Marsh, where it becomes known as the Steeping River on the boundary of Great Steeping parish. The main channel is supplemented by the Wainfleet Relief Channel as it passes Wainfleet All Saints, and the relief channel is joined by the old course of the Lymn. Once the two channels rejoin, there are three flood defence structures to protect the region from flooding by the North Sea.