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Live levels from 7 monitoring stations across Greater Manchester, Warrington, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Brinksway | 0.51 m 1h ago | Normal | ||
| 4.6 km by river | ||||
| Didsbury River | 2.66 m 1h ago | Low | ||
| 3.5 km by river | ||||
| Northenden | 0.28 m 1h ago | Normal | ||
| 10.7 km by river | ||||
| Ashton Weirstructure | 0.36 m 1h ago | Normal | ||
| 6.3 km by river | ||||
| Flixton Bridge | 0.35 m 1h ago | Normal | ||
| Station | Level now | Status | ||
|---|---|---|---|---|
| Continues from the section above: downstream below Flixton Bridge, distance by river not measured | ||||
| Westy | 3.68 m 1h ago | Normal | ||
| 11.2 km by river | ||||
| Fiddlers Ferrytidal | 2.95 m 1h 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 Mersey 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 Mersey above Brinksway, its highest gauge, no more than 10.2 km by river above Brinksway.
| Poise Brook Debris Screenstructure | 0.12 m 1h ago | Normal |
Its water passes every gauge on the Mersey, from Brinksway down.
Joins the Mersey above Brinksway, its highest gauge, no more than 14.4 km by river above Brinksway.
| Woolley Bridge | 0.18 m 1h ago | Normal |
| 10.6 km by river | ||
| Compstall | 0.10 m 1h ago | Normal |
Its water passes every gauge on the Mersey, from Brinksway down.
Joins the Mersey above Brinksway, its highest gauge, no more than 14.1 km by river above Brinksway.
| Goytside Farm | 0.61 m 1h ago | Normal |
| 10.0 km by river | ||
| Marple Bridge | 0.17 m 1h ago | Normal |
Its water passes every gauge on the Mersey, from Brinksway down.
Joins the Mersey above Brinksway, its highest gauge, no more than 3.4 km by river above Brinksway.
| Delph | 0.11 m 1h ago | Normal |
| 4.3 km by river | ||
| Uppermill | 0.05 m 1h ago | Normal |
| 5.3 km by river | ||
| Waggon Road | 0.46 m 1h ago | Normal |
| 13.6 km by river | ||
| Broomstairs Bridge | 0.24 m 1h ago | Normal |
| 12.8 km by river | ||
| Portwood | 0.12 m 1h ago | Normal |
Its water passes every gauge on the Mersey, from Brinksway down.
Joins the Mersey between Brinksway and Didsbury River, no more than 3.3 km by river above Didsbury River.
| Lavington Avenue Debris Screenstructure | 0.21 m 1h ago | Normal |
Its water passes Didsbury River and every gauge below it on the Mersey. It does not pass Brinksway or the gauges above it.
Joins the Mersey between Brinksway and Didsbury River, no more than 8.2 km by river above Didsbury River.
| Bramhall Green Bridge Lane | 0.17 m 18h ago | old reading |
Its water passes Didsbury River and every gauge below it on the Mersey. It does not pass Brinksway or the gauges above it.
Joins the Mersey between Northenden and Ashton Weir, no more than 10.1 km by river above Ashton Weir.
| Cringle Brook Debris Screenstructure | 0.02 m 1h ago | Normal |
Its water passes Ashton Weir and every gauge below it on the Mersey. It does not pass Northenden or the gauges above it.
Joins the Mersey between Northenden and Ashton Weir, no more than 10.2 km by river above Ashton Weir.
| Brighton Grove Debris Screenstructure | 0.18 m 1h ago | Normal |
Its water passes Ashton Weir and every gauge below it on the Mersey. It does not pass Northenden or the gauges above it.
Joins the Mersey between Westy and Fiddlers Ferry, no more than 3.1 km by river above Fiddlers Ferry.
| Causey Bridge | 0.24 m 1h ago | Normal |
| 2.9 km by river | ||
| Higham Avenue | 0.34 m 1h ago | Normal |
| 3.2 km by river | ||
| Liverpool Roadtidal | 1.48 m 1h ago | Normal |
Its water passes Fiddlers Ferry and every gauge below it on the Mersey. It does not pass Westy or the gauges above it.
Below Fiddlers Ferry, its water next reaches Liverpool, a gauge on an unnamed watercourse (distance by river not measured).
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.
215 storm overflows are traced upstream of Fiddlers Ferry, the Mersey’s lowest gauge on the river map: on the Mersey itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Fiddlers Ferry: 6,015 spills over 31,208 hours in total, across all 215.
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 Mersey includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
and 24 more: show all 27 overflows on this stretch → All above Brinksway, nearest first →
and 20 more: show all 23 overflows on the Etherow and the streams that join it → All above Compstall, nearest first →
and 14 more: show all 17 overflows on the Goyt and the streams that join it → All above Marple Bridge, nearest first →
and 58 more: show all 61 overflows on the Tame and the streams that join it → All above Portwood, nearest first →
and 13 more: show all 16 overflows on this stretch → All above Didsbury River, nearest first →
and 2 more: show all 5 overflows on this stretch → All above Bramhall Green Bridge Lane, nearest first →
and 18 more: show all 21 overflows on this stretch → All above Ashton Weir, nearest first →
and 2 more: show all 5 overflows on this stretch → All above Flixton Bridge, nearest first →
and 2 more: show all 5 overflows on this stretch → All above Fiddlers Ferry, nearest first →
and 26 more: show all 29 overflows on Sankey Brook and the streams that join it → All above Liverpool Road, nearest first →
Within 3 km of one of the Mersey’s gauges in a straight line, but the river map cannot say whether their water reaches it.
40 more near these gauges whose connection is not known.
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.
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.
144 sampling points on the River Mersey and the streams that join it above Fiddlers Ferry. 34 have a sample from the last 12 months; 55 have any sample banked.
Sampled most recently, anywhere on the Mersey and its streams:
| Where, from the source down | Sampling points | Newest sample |
|---|---|---|
| River Tame and its streamsjoins the Mersey above Brinksway | 27 points13 sampled | 18 Sep 2026 |
| Sankey Brook and its streamsjoins the Mersey above Fiddlers Ferry | 24 points7 sampled | 1 Sep 2026 |
| River Etherow and its streamsjoins the Mersey above Brinksway | 15 points6 sampled | 11 Sep 2026 |
| Above Westy | 11 points2 sampled | 15 Sep 2026 |
| River Goyt and its streamsjoins the Mersey above Brinksway | 34 points16 sampled | 3 Sep 2026 |
| Above Fiddlers Ferry | 5 points1 sampled | 13 Aug 2026 |
| Lady Brook and its streamsjoins the Mersey above Didsbury River | 9 points2 sampled | 14 Aug 2026 |
| Above Brinksway | 7 points4 sampled | 15 Sep 2026 |
| Above Didsbury River | 4 points2 sampled | 24 Apr 2026 |
| Above Northenden | 1 point0 sampled | none banked |
| Above Ashton Weir | 6 points2 sampled | 19 Mar 2025 |
| Above Flixton Bridge | 1 point0 sampled | none banked |
England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).
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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