Seaton, Looe and Fowey catchment
• St Neot • Cornwall • ID: 49115 • Level
(24m ago) • 4 readings/hr • 109 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.
Get notified when recent rainfall near this gauge crosses its learnt rise trigger — an early "watch"
signal, typically hours before a rise. Experimental; not an official flood warning.
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EA/SEPA/NRW data and are best-efforts. Terms
Current Level
0.390 m
▬ Steady
24h Max
0.403 m
24h Min
0.390 m
Typical Range
0.17 - 0.57
m
Highest Recorded
1.38 m
EA official record
1.38 in our data (since Mar 1971)
Current level is 28% of this
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
Prediction V2
Prediction Eris
Nimbus beta
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. The shaded band is its 10–90% range, widened so that about 80% of recent outcomes fall inside it.
Under evaluation — not yet promoted, so treat as a second opinion.
River Flow
90 days
Daily mean discharge (m³/s) with the daily min–max band, from the EA Hydrology API. Flow is the volume of water passing the gauge — often a more direct flood signal than level.
Flow Data: Daily mean flow (m³/s) to 6 Oct (2 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional)via EA Hydrology
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.
2 storm overflows are traced upstream of this gauge, the nearest 1.6 km away along the river. 0 report discharging now, 2 report not discharging.
South West Water · into Tributary Of East Looe River · 5.9 km away in a straight line · no mapped watercourse close enough to be sure
3 spills · 4 hours in 2025
Not discharging now · last
2 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 0.57 m
on about 1 day.
This year so far: 3 days.
20263 days so far
20252 days
20241 day
20231 day
20221 day
20210 days
20203 days
20190 days
20181 day
20170 days
Counted from each day's highest reading. Days with missing or implausible readings are left out.
Flood history near this gauge
Official Environment Agency warnings issued since 2008 for the 1 flood
area linked to this gauge (nearest 3.0 km away).
0flood warnings43flood alerts
Most recent flood alert:
26 Jan 2026
— River Fowey
Year by year
Year
Warnings
Alerts
2026
0
2
2025
0
3
2024
0
2
2023
0
2
2021
0
2
2020
0
5
2019
0
2
2016
0
3
2015
0
1
2014
0
3
2013
0
3
2012
0
7
2011
0
5
2010
0
2
2008
0
1
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 St Neot flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. This is the area linked to this gauge, nearest first.
🌊 Fairly flashyResponds fairly quickly to rain, with moderate baseflow between events.
Your catchment is all the land that drains rainfall into the river above this gauge. Its character — how
steep, wet, wooded, urban or chalky that land is — decides how fast rain here turns into a rising river. A steep, bare or clay
catchment is “flashy” (rises and falls quickly, floods easily); a flat, chalk or well-wooded one is
slow and steady. The tiles below put numbers to that; the flow-duration curve reads left-to-right
from the river’s typical high flows (Q5) down to its low flows (Q95) — a steep curve means a flashy river.
The physical character of the land that drains to this gauge, and how it shapes its flood response — from the National River Flow Archive (UKCEH).
Baseflow Index
0.46
mixed response
Avg Annual Rainfall
1,558 mm/yr
1991–2020 · -3% since 1941–70
Urban Extent
0.2%
largely rural
Median Annual Flood
8.47 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
13.20 m³/s
27 Dec 1979 · daily mean, not the instantaneous peak
Flow-Duration Curve
Daily flow (m³/s) exceeded each % of the time — a steep curve is flashy, a flat one is steady. Q5 high · Q50 median · Q95 low.
Three-bay compound Crump weir. Flows regulated and influenced by PWS from Colliford Reservoir since construction in 1983.
More detail
The catchment
Majority of upper catchment on granite intrusion of Bodmin Moor. Hill tops are rounded with some peat; valleys can be steep. Lower part of catchment underlain by metamorphosed Devonian slates. Entirely rural before reservoir built; some abandoned china clay pits. Baseflow high from storage in kaolinised granite. Colliford reservoir began to fill in 1983. Pre-reservoir FARL2015 (for WINFAP 5.3 or later) or FARL (for earlier versions of WINFAP) should be used with these records because the peak flow data after the reservoir started impounding is rejected. Pre- and post-reservoir values for FARL2015 are 0.9622 and 0.9392, respectively. Pre- and post-reservoir values for FARL are 0.982 and 0.635, respectively.
The station
Three-bay compound Crump profile weir, middle crest lengths 1.75m and side crests 2.75m (total 7.25m). Wing walls at 1.7m.
How it measures flow
Flood banks contain flows up to wingwalls. Fully modular. Pre-1983 catchment had a natural flow regime; post-1983, flows are attenuated by Colliford reservoir. Now no bypassing as flows are moderated/contained by the reservoir. One theoretical peak flow rating applied across period of record. Confirmed by gaugings to 0.6m.
Flow regime
Since filling of Colliford Reservoir river has been subject to flow regulation and public water supply exports. Runoff increased by effluent returns.
The flow record
Suggest only the pre-1983 record is used for flood frequency estimation and as such Peak Flow data are rejected post-1983. Full period of record peak flow data reviewed and released in September 2020 (WINFAP Files v9).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Gauging structure
Operating since
1971
Station datum
70.5 mAOD
Flow record
1971–2024 · 53 yrs · 100% complete
Peak-flow record
since 1971
Hydrometric area
48
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
Frequently asked questions
Is the St Neot River at Craigshill Wood flooding today?
The current level is 0.39m, which is within the typical range of 0.17 to 0.57m. Flooding is unlikely at this level.
Is the river level rising or falling at Craigshill Wood?
Based on the most recent readings, the level is currently steady. 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 2.6mm 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 St Neot River at Craigshill Wood?
The typical range at this station is 0.17m to 0.57m, based on Environment Agency historical data. Levels above 0.57m 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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Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
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