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Home › Rivers › River Glenderamackin

River Glenderamackin water levels

Live levels from 1 monitoring station across Cumberland, updated every 15 minutes.

1stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
ThrelkeldThrelkeld0.59 m 1h agoNormal—

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.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Glenderamackin above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

No gauged tributary joins the Glenderamackin above Threlkeld on the river map. Streams without a gauge are not counted here.

Where the Glenderamackin goes

Below Threlkeld, its water next reaches Riddings Wood, a gauge on River Greta, 1.5 km by river downstream.

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.

Streams without a gauge

Named streams on the river map that flow into the Glenderamackin 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.

Storm overflows upstream

1 storm overflow is traced upstream of Threlkeld, the Glenderamackin’s lowest gauge on the river map: on the Glenderamackin itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 1 not discharging
  • 0 offline or silent: 0 monitor offline, 0 status unknown, 0 no live feed

Official figures for 2025, for the overflow traced upstream of Threlkeld: 53 spills over 104 hours.

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 Glenderamackin includes the smaller streams that join it there.

Above Threlkeld, the Glenderamackin’s highest gauge1 overflow
  • Gategill Beck M/H CSO Not discharging
    United Utilities · into Gategill Beck · 820 m by river above Threlkeld · 2025: 53 spills, 104 h

1 other overflow within 3 km of these gauges is placed below the Glenderamackin’s lowest gauge or on another river, so not listed.

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: © United Utilities 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.

Water samples

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.

24 sampling points on the River Glenderamackin and the streams that join it above Threlkeld, and below it. 2 have a sample from the last 12 months; 8 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.

Above Threlkeld River Glenderamackin 20 points, 5 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
River Glenderamackin at Mungrisedale BridgeRiver Glenderamackin9.7 kmLast sampled 17 Dec 2007, before the imported period
River Glenderamackin at MungrisdaleRiver Glenderamackin9.6 kmLast sampled 27 Feb 2008, before the imported period
Trout Beck near A5091Trout Beck9.2 kmLast sampled 5 Feb 2020, before the imported period
Barrow Beck (Bridge)Barrow Beck8.4 kmLast sampled 25 Oct 2006, before the imported period
Barrow Beck above the confluence with River GlenderamackinBarrow Beck8.3 kmLast sampled 26 Apr 2006, before the imported period
Mosedale Beck at NY354231Mosedale Beck8.2 kmLast sampled 25 Jan 2023, before the imported period
River Glenderamackin downstream of Blake Beck FarmRiver Glenderamackin6.5 kmLast sampled 10 Mar 2017, before the imported period
Trout Beck at Wolt BridgeTrout Beck5.3 kmLast sampled 7 May 2014, before the imported period
Glenderamackin upstream confluence with Mosedale BeckRiver Glenderamackin4.7 kmLast sampled 17 Dec 2007, before the imported period
Mosedale Beck at WallthwaiteMosedale Beck4.6 kmLast sampled 17 Dec 2007, before the imported period
River Glenderamackin at GuardhouseRiver Glenderamackin2.5 km17 Dec 2025 · 10 months agoOxygen 100.2%Temp 6 °CpH 7.05Ammonia below 0.002 mg/l
Sample point H Gategill Low LevelGate Gill2.1 kmLast sampled 24 Mar 2010, before the imported period
Woodend Low Level Mine DischargeGate Gill1.7 km9 Sep 2026 · 29 days agoOxygen 99.2% Mar 2025Temp 13.1 °C Mar 2025pH 3.8 Mar 2025Ammonia below 0.03 mg/l Mar 2025
Gategill Point Point WeirGate Gill1.6 kmLast sampled 7 Nov 2019, before the imported period
Gategill Beck downstream of Blue DamGategill Beck1.6 kmLast sampled 13 May 2021, before the imported period
Gategill Beck downstream of Woodend LevelGategill Beck1.6 kmLast sampled 8 Apr 2011, before the imported period
Gategill Beck downstream of Yellow DamGategill Beck1.6 km11 Mar 2025 · 19 months agoOxygen 102.9%Temp 8.9 °CpH 4.2Conductivity 211 µS/cm
Gategill Beck at Four SeasonsGategill Beck1.2 kmLast sampled 28 Apr 2021, before the imported period
Gategill BeckGategill Beck0.8 km11 Mar 2025 · 19 months agoOxygen 104.1%Temp 7.1 °CpH 4.8Conductivity 189 µS/cm
Glenderamackin upstream of Gategill BeckRiver Glenderamackin0.7 km11 Mar 2025 · 19 months agoOxygen 102.8% Jul 2024Temp 4.3 °CpH 7.5Ammonia below 0.03 mg/l
Below Threlkeld 4 points, 3 with samples
Sampling pointWatercourse (map)Below the gaugeLast sampleLatest results (river water)
Glenderamackin 400 m downstream of Arc ThrelkeldRiver Glenderamackin0.4 km11 Mar 2025 · 19 months agoOxygen 108%Temp 6.5 °CpH 7.6Conductivity 93 µS/cm
Glenderamackin above the confluence with St John's BeckRiver Glenderamackin1.4 kmLast sampled 17 Dec 2007, before the imported period
Glenderamackin downstream of confluence St Johns BeckRiver Glenderamackin1.5 km19 Jul 2024 · 2.2 years agoOxygen 104.9%Temp 16.4 °CpH 7.31Conductivity 78.5 µS/cm
Glenderamackin at Riddings WoodRiver Glenderamackin1.5 km11 Mar 2025 · 19 months agoOxygen 105.8%Temp 4.9 °CpH 7.3Conductivity 90 µS/cm

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.

Wave tracker for this river → Cumberland rivers → All UK rivers