Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.
Streams and rivers with a gauge whose water joins the Bain above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Named streams on the river map that flow into the Bain and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.
Old River Bain (joins about 4.0 km above Kirkby On Bain)
Storm overflows upstream
4 storm overflows are traced upstream of Kirkby On Bain, the Bain’s lowest gauge on the river map: on the Bain itself, on its gauged tributaries, and on smaller streams that join above there.
0 report discharging now
4 not discharging
0 offline or silent: 0 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Kirkby On Bain: 78 spills over 836 hours in total, across all 4.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Bain includes the smaller streams that join it there.
Between Horncastle Victoria Mill and Kirkby On Bain4 overflows
Banovallum CSONot discharging Anglian Water · into Old River Bain · 8.4 km by river above Kirkby On Bain · 2025: 4 spills, 3.8 h
Horncastle Sports Ground CSONot discharging Anglian Water · into Old River Bain · 7.9 km by river above Kirkby On Bain · 2025: 36 spills, 309 h
Horncastle-Thornton Lane TPSNot discharging Anglian Water · into Old River Bain · 7.2 km by river above Kirkby On Bain · 2025: 4 spills, 30 h
Horncastle Water Recycling CentreNot discharging Anglian Water · into Old River Bain · 6.5 km by river above Kirkby On Bain · 2025: 34 spills, 493 h
Near these gauges, connection not known
Within 3 km of one of the Bain’s gauges in a straight line, but the river map cannot say whether their water reaches it.
West Thimbleby PSNot discharging Anglian Water · into Unnamed Ditch Tributary Catchw · 2.4 km from Horncastle Victoria Mill in a straight line · its watercourse is not on the river map · 2025: 2 spills, 11 h
Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.
13 sampling points on the River Bain and the streams that join it above Kirkby On Bain. 6 have a sample from the last 12 months; 9 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
Last sampled 17 Feb 2020, before the imported period
Distances are along the river to the gauge named. England's samples only.
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.