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Home › Rivers › River Medlock

River Medlock

A stream near Lees, Tameside. No gauge of its own: what the river map and the banked data say about it.

The River Medlock is a stream on Ordnance Survey’s river map near Lees, Tameside, with about 13 km of mapped channel. Where it goes is not known: the map has a gap below it.

Next gauge downstream

Not known: the river map does not trace this water as far as a gauge or the sea (the map has a gap, the water enters a canal, or the next gauge is more than 100 km away).

Storm overflows on the River Medlock

5 storm overflows are placed on this stream on the river map. Each status is the water company’s own monitor.

A status says whether an overflow is discharging now, never how much or why. A monitor that is offline or has not reported is not “not discharging”. Sewage in Britain’s rivers →

Live status: © United Utilities storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0.

Water-sampling points on the River Medlock

6 Environment Agency sampling points are placed on this stream. These are dated samples taken by hand, not live readings, and FloodRadar does not grade them.

A sample is taken on a date; it says nothing about the water today. A sample below an overflow does not by itself show where anything in it came from.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

Places along it

From its source towards its mouth, the settlements within a kilometre of it on the map: Higher Barrowshaw, Near Barrowshaw, Top o' th' Meadows, Birks, Top of Moor, Watersheddings, Sun Hill, Taylor Green.

Place names: OS Open Names. Contains OS data © Crown copyright and database rights 2026.

On the map

The map needs JavaScript. Everything it shows is listed on this page.

The blue line is the River Medlock; grey lines are other mapped watercourses. Lines from OS Open Rivers (edition 2026-04).

Rivers and streams: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

M43 7RX, a postcode page near where it ends on the map (about 610 m away) →All rivers with gauges →

What this page can and cannot tell you