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⤴Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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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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Not an emergency service — if in danger call 999. Alerts rely on
EA/SEPA/NRW data and are best-efforts. Terms
Current Level
0.142 m
▬ Steady
24h Max
0.200 m
24h Min
0.126 m
Typical Range
0.12 - 0.32
m
Highest Recorded
2.37 m
EA official record
0.90 in our data (since Aug 1971)
Current level is 6% 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.
25 storm overflows are traced upstream of this gauge, the nearest 970 m away along the river. 0 report discharging now, 25 report not discharging.
Northumbrian Water · into Unnamed Trib Of Spen Burn · 3.4 km away in a straight line · its watercourse is not on the river map
3 spills · 0 hours in 2025
Not discharging now · last
55 more within 6 km whose connection is not known.
8 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 0.32 m
on about 52 days.
This year so far: 37 days.
202637 days, 2 of them high · 2 highso far
202526 days
202490 days, 7 of them high · 7 high
202368 days, 8 of them high · 8 high
202225 days, 2 of them high · 2 high
202163 days, 7 of them high · 7 high
202057 days, 5 of them high · 5 high
201978 days, 7 of them high · 7 high
201843 days, 3 of them high · 3 high
201714 days
Counted from each day's highest reading. Days with missing or implausible readings are left out.
The darker part is days above 0.75 m, the level this gauge tops only a few days a year.
Flood history near this gauge
Official Environment Agency warnings issued since 2011 for the 10 flood
areas linked to this gauge (nearest 5.0 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 Rowlands Gill 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.
🌊 FlashyRain runs off fast — levels rise and fall sharply, often within hours of heavy rain.
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
0.34
flashy — rain runs off fast
Avg Annual Rainfall
913 mm/yr
1991–2020 · +5% since 1941–70
Urban Extent
2.2%
largely rural
Median Annual Flood
44.11 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
122 m³/s
6 Sep 2008 · 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.
Two Crump weirs beneath a bridge. Regime heavily influenced by Derwent reservoir which impounds 110km2 of the upper catchment.
More detail
The catchment
Predominantly upland catchment on moderately permeable carboniferous formations (Carboniferous Limestone in the upper catchment and Millstone Grit and Coal Measures elsewhere), with around half of the catchment overlain by superficial deposits of peat and Boulder Clay. Derwent Reservoir began impounding in 1965, two years into record. Mixed land use - under a half is grassland, with heath uplands; arable and urban development in lower reaches.
The station
Two Crump profile weirs with slightly different crest levels beneath the two arches of a bridge and separated by the central pier of the bridge. Bypassing is prevented by the bridge and its embankments. Bridge inverts repaired in summer 2003. Persistent gravel accretion problem.
How it measures flow
Persistent blockage of the long inlet pipe in the 1980s, also lag problem. One peak flow rating applied to period of record. Calibrated by physical model but lack of cableway meant rating not checked above moderate flows. Recent higher gaugings (>0.66m, 2019-2020) taken from bridge upstream suggest that current rating may be overestimating flows. Flood Studies Report grade C.
Flow regime
Flow regime is substantially influenced by Derwent Reservoir, which began impounding in 1965. Flashy response to rainfall prior to reservoir construction. Significant net export of water.
The flow record
Full period of record peak flow data reviewed and released in September 2022 (WINFAP Files v11).
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Gauging structure
Operating since
1962
Station datum
26.2 mAOD
Flow record
1962–2024 · 62 yrs · 99% complete
Peak-flow record
since 1963
Hydrometric area
23
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
Rain upstream
This gauge has no rain model of its own, but it usually follows Eddys Bridge: when about 10mm of rain falls near Eddys Bridge in 6h, this gauge usually starts rising about 2 hours later.
Timing, not cause. Gauges can move together simply because the same rain fell on both.
Frequently asked questions
Is the River Derwent at Rowlands Gill flooding today?
The current level is 0.14m, which is within the typical range of 0.12 to 0.32m. Flooding is unlikely at this level.
Is the river level rising or falling at Rowlands Gill?
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.
What is a normal level for the River Derwent at Rowlands Gill?
The typical range at this station is 0.12m to 0.32m, based on Environment Agency historical data. Levels above 0.32m 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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Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
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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:
FloodRadar
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2 Nov 2018 Low flow
16 Nov 2010 Downstream
Bridge before weir construction
After weir constructed; low flows
After weir constructed; flood flows
Looking d/s from left bank; showing recorder hut
Upstream view from left bank
Downstream from gauging station
