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Live levels from 2 monitoring stations across Lincolnshire, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Kates Bridge | 0.05 mASD 32m ago | Low | ||
| 24.8 km by river | ||||
| Surfleet Sluicestructure | 0.83 mASD 32m ago | Normal | ||
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.
Contains OS data © Crown copyright and database rights 2026.
Streams and rivers with a gauge whose water joins the Glen above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Joins the Glen above Kates Bridge, its highest gauge, no more than 4.4 km by river above Kates Bridge.
| KING STREET GS STOWE | 0.00 m3/s 47m ago | — |
Its water passes every gauge on the Glen, from Kates Bridge down.
Joins the Glen above Kates Bridge, its highest gauge, no more than 27.7 km by river above Kates Bridge.
| Irnhamplace estimated | -0.09 mASD 32m ago | Low |
| IRNHAM GSplace estimated | 0.00 m3/s 32m ago | — |
Its water passes every gauge on the Glen, from Kates Bridge down.
Joins the Glen above Kates Bridge, its highest gauge, no more than 19.0 km by river above Kates Bridge.
| Castle Bytham | 0.26 mASD 32m ago | Normal |
| 3.0 km by river | ||
| Little Bytham | 0.03 mASD 47m ago | Normal |
Its water passes every gauge on the Glen, from Kates Bridge down.
Joins the Glen above Kates Bridge, its highest gauge, no more than 30.1 km by river above Kates Bridge.
| BURTON COGGLES GS | 0.00 m3/s 47m ago | — |
| 30 m by river | ||
| Burton Coggles | -0.12 m 47m ago | Low |
Its water passes every gauge on the Glen, from Kates Bridge down.
No gauge below Surfleet Sluice is known on the river map.
Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.
7 storm overflows are traced upstream of Surfleet Sluice, the Glen’s lowest gauge on the river map: on the Glen itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Surfleet Sluice: 244 spills over 1,275 hours in total, across all 7.
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 Glen includes the smaller streams that join it there.
A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →
Live status: © Anglian Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.
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.
25 sampling points on the River Glen and the streams that join it above Surfleet Sluice. 11 have a sample from the last 12 months; 14 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Downstream of Old Somerby sewage treatment works | West Glen River | 6.4 km | Last sampled 17 Mar 2023, before the imported period | |
| West Glen downstream of Boothby Pagnell sewage treatment works | West Glen River | 3.2 km | Last sampled 9 Dec 2021, before the imported period | |
| West Glen at Camp Lane | West Glen River | 0.7 km | 1 Sep 2026 · 37 days ago | Oxygen 128.1% Jul 2026Temp 20.9 °C Jul 2026pH 7.83 Jul 2026Ammonia below 0.03 mg/l Jul 2026 |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Downstream of Ropsley sewage treatment works | East Glen River | 7.9 km | Last sampled 13 Mar 2023, before the imported period |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Tributary of River Glen Little Bytham | River Tham | 1.1 km | 18 May 2026 · 5 months ago | Oxygen 89.8%Temp 10.6 °CpH 7.58Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Headwaters upstream of Burton Coggles sewage treatment works | unnamed stream | 31 km | Last sampled 9 Dec 2021, before the imported period | |
| River Glen (East) Hawthorpe Road Bridge | East Glen River | 28 km | Last sampled 13 Mar 2023, before the imported period | |
| Swinstead Road | unnamed stream | 22 km | 4 Dec 2025 · 10 months ago | Oxygen 95.8%Temp 7.6 °CpH 8.01Ammonia 0.032 mg/l |
| River Glen (West) Creeton B1176 Road Bridge | West Glen River | 21 km | 1 Sep 2026 · 37 days ago | Oxygen 87.6%Temp 16.1 °CpH 7.91Ammonia 0.031 mg/l |
| Tributary of Holywell Brook at Cow Pasture Lane | unnamed stream | 20 km | 12 Dec 2024 · 22 months ago | Oxygen 93.3%Temp 7.4 °CpH 8.03Ammonia below 0.03 mg/l |
| River Tham Little Bytham B1176 Road Bridge | River Tham | 19 km | 3 Aug 2026 · 2 months ago | Oxygen 109.5%Temp 15.5 °CpH 7.91Ammonia below 0.03 mg/l |
| East Glen at Lound Road | East Glen River | 16 km | 3 Dec 2024 · 22 months ago | Oxygen 87.6%Temp 6.8 °CpH 8.03Ammonia 0.028 mg/l |
| Grimsthorpe Park Brook - GB105031050450 | unnamed stream | 16 km | 10 Sep 2026 · 28 days ago | Oxygen 93.2% Mar 2026Temp 9.1 °C Mar 2026pH 7.94 Mar 2026Ammonia below 0.03 mg/l Mar 2026 |
| River Glen (West) Essendine Bridge | West Glen River | 9.5 km | 5 Mar 2024 · 2.6 years ago | Oxygen 96.7%Temp 8.1 °CpH 8.25Ammonia below 0.03 mg/l |
| West Glen at Glen Lodge upstream of Railway | West Glen River | 7.0 km | Last sampled 7 Dec 2022, before the imported period | |
| River Glen (East) Wilsthorpe P/S | East Glen River | 6.0 km | Last sampled 21 Aug 2013, before the imported period | |
| King Street Drain | King Street Drain | 2.6 km | 5 Dec 2025 · 10 months ago | Oxygen 87.5%Temp 6.5 °CpH 7.87Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Northorpe Fen | Car Dyke | 26 km | 3 Dec 2025 · 10 months ago | Oxygen 85.6%Temp 7.3 °CpH 7.9Ammonia 0.031 mg/l |
| River Glen Kate's Bridge A15 | River Glen | 25 km | 9 Sep 2026 · 29 days ago | Oxygen 121.4% Aug 2026Temp 19.8 °C Aug 2026pH 8.05 Aug 2026Ammonia below 0.03 mg/l |
| Bourne Eau Old Railway Bridge | Bourne Eau | 22 km | 8 Jul 2026 · 3 months ago | Oxygen 96.5% Jan 2026Temp 8.3 °C Jan 2026pH 7.73Conductivity 779 µS/cm Jan 2026 |
| River Glen Tongue End Bridge | River Glen | 19 km | Last sampled 9 May 2017, before the imported period | |
| River Glen Tongue End Farm Track | River Glen | 17 km | Last sampled 15 Mar 2002, before the imported period | |
| River Glen A151 Road Bridge West Pinchbeck | River Glen | 10 km | Last sampled 22 May 2014, before the imported period | |
| River Glen Surfleet A16 Road Bridge | River Glen | 3.5 km | 18 Aug 2026 · 51 days ago | Oxygen 79.5%Temp 21 °CpH 7.82Ammonia 0.032 mg/l |
| River Glen Surfleet | River Glen | 0.6 km | Last sampled 9 May 2017, 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.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.
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