Don and Rother catchment
• Canklow Regulator • South Yorkshire • ID: L0301 • Level
(1h ago) • 4 readings/hr • 168 views
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You'll be notified when this gauge is rising more than 0.10 m/hr — a sign of rapidly increasing water levels.
You'll be notified when a new storm-overflow (sewage) discharge starts within ~3 km of this gauge, based on the water companies' near-real-time feeds.
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Current Level
23.956 mAOD
▼ Falling (-2cm/hr)
24h Max
24.085 mAOD
24h Min
23.779 mAOD
Typical Range
24.04 - 25.23
mAOD
Highest Recorded
30.20 mAOD
EA official record
28.79 in our data (since Mar 1996)
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
Flood predictions aren't generated for
lock / structure gauges —
their levels are driven by gate operation,
not by catchment rainfall, so the forecast models would have no skill here.
Downstream level
7 days
The level on the DOWNSTREAM side of this lock/weir structure — a separate EA
measure from the main (upstream) reading shown on the Current tab. Threshold bands
are computed from this gauge's own downstream history.
Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.
94 storm overflows are traced upstream of this gauge, the nearest 830 m away along the river. 0 report discharging now, 87 report not discharging, and for 7 the monitor is offline or has not reported, so their status is not known.
Yorkshire Water · into River Mas Culverted · 3.5 km away in a straight line · no mapped watercourse close enough to be sure
29 spills · 41 hours in 2025
Not discharging now · last
39 more within 6 km whose connection is not known.
44 other overflows within 6 km are downstream of this gauge or on another branch of the river network, so they are not listed.
These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →
In a typical year this gauge reaches its typical high of 25.23 m
on about 26 days.
This year so far: 18 days.
202618 days so far
202519 days, 4 of them high · 4 highpatchy data
202423 days, 4 of them high · 4 high
202338 days, 3 of them high · 3 high
202215 days, 4 of them high · 4 high
202128 days, 3 of them high · 3 high
202030 days, 7 of them high · 7 highpatchy data
201947 days, 8 of them high · 8 high
201821 days, 5 of them high · 5 high
20177 days
Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown.
The darker part is days above 26.62 m, the level this gauge tops only a few days a year.
Flood history near this gauge
Official Environment Agency warnings issued since 2010 for the 10 flood
areas linked to this gauge (nearest 1.3 km away).
Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record.
See also the Canklow Regulator flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 10 areas linked to this gauge, nearest first.
Is the River Rother at Canklow Regulator flooding today?
The current level is 23.96m, which is below the typical range. Flooding is very unlikely at this level.
Is the river level rising or falling at Canklow Regulator?
Based on the most recent readings, the level is currently falling. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.
Why is the level slowly falling?
When little or no rain has fallen for a while, a river level gradually drops as the water stored in the ground and soil drains away with nothing to replace it. This is called baseflow recession and is normal in dry spells. Only about 9.8mm of rain has fallen nearby in the last 7 days, so the flow is being sustained mainly by groundwater. A gentle decline like this is expected and is not a sign of a problem — downstream gauges often recede a little faster than headwaters further upstream, and levels recover once rain returns.
What is a normal level for the River Rother at Canklow Regulator?
The typical range at this station is 24.04m to 25.23m, based on Environment Agency historical data. Levels above 25.23m are higher than usually seen and may indicate a flood risk.
How often is this river level data updated?
Readings are supplied by the Environment Agency gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.
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📮 Flood risk by postcode near this gauge
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
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