Sincil Dike

The Sincil Dyke splits from the River Witham at Bargate Weir in Lincoln.^[1] It runs east for 1.5 miles (2.4 km), passing the west side of the Sincil Bank Stadium before flowing directly under the Lincoln railway station.^[2] The river then flows east, out of the city of Lincoln, running parallel to the River Witham as it passes Washingborough, and then rejoins the River Withham west of Bardney.^[3]

The river used to rejoin the main channel at Stamp End in Lincoln, but was re-routed into the South Delph, a drainage ditch constructed by John Rennie in the early 19th century that joins the main channel below Bardney lock.^[4] The stream is known to have been used as a drainage channel in the mid-13th century and is thought to be pre-medieval or even Roman.^[5] Parts of it were culverted in 1847 to allow the construction of Lincoln Central railway station.