Derwent West Cumbria and Duddon catchment
• Ennerdale Bridge • Cumberland • ID: 744111 • Level
(36m ago) • 4 readings/hr • 107 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
0.887 m
▼ Falling
24h Max
0.942 m
24h Min
0.518 m
Typical Range
0.17 - 1.55
m
Highest Recorded
2.46 m
EA official record
A 3.91 reading (16 Mar 2013) sits in our unverified raw history and is not treated as the record
Current level is 36% of this
🚽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.
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 8 Oct (2 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional)via EA Hydrology
None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow. Those nearby are listed below.
Nearby, connection not known
Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.
United Utilities · into Dub Beck · 5.2 km away in a straight line · no mapped watercourse close enough to be sure
68 spills · 188 hours in 2025
Discharging nowsince
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 →
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 Ennerdale Bridge flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 6 areas linked to this gauge, nearest first.
🌊 Steep & flashySteep catchment sheds rain quickly — expect fast, sharp rises after 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
0.42
mixed response
Avg Annual Rainfall
2,625 mm/yr
1991–2020 · +2% since 1941–70
Urban Extent
0.0%
largely rural
Median Annual Flood
34.07 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
80.20 m³/s
19 Nov 2009 · 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.
Compound Crump weir gauging the outflow from Ennerdale Lake.
More detail
The catchment
Catchment geology of completely impervious Skiddaw Slates in the north west, Borrowdale Volcanics in the south east with intrusions in the centre. Mostly rough sheep grazing, with forestry on drift cover along river valley. No catchment changes known.
The station
Compound Crump profile weir from August 1973; 10.6m overall width; centre notch 3.0m wide and 0.3m lower than flanking crests each 3.5m wide. Measures flood discharge and compensation water from Ennerdale Water 800m u/s. The station was formerly known as Ennerdale Weir. Replaced narrow flume with side weir regarded as control for a rated section. Eel pass installed 2016.
How it measures flow
Wingwalls raised from 1.5m to 2.0m in 1999. However, flow above around 1.4m stage bypasses the station on right bank - observed during the large event in October 2008. Although a baffle plate has been installed, well surging, which can be over 20 mm at higher stages, can be a problem. Eel pass installed 2016. Permanent cableway, but gaugings do not include bypassing flow. Gaugings also carried out 30m downstream of weir. One rating applied, based on gaugings although above 1.5m rating is uncertain due to bypassing.
Flow regime
Although gauging Ennerdale lake outflow, the regime is much more responsive than other lake outflows in the area. Ennerdale Water (0.8 km u/s) provides public water supply for West Cumbria and industrial supply for Sellafield. Compensation flow.
The flow record
Considerable uncertainty due to bypassing in the largest events, such as October 2008 and November 2009. No data are presented for the earlier station (before 1973). 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
1973
Station datum
110.4 mAOD
Flow record
1973–2024 · 51 yrs · 100% complete
Peak-flow record
since 1973
Hydrometric area
74
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Frequently asked questions
Is the River Ehen at Bleach Green Weir flooding today?
The current level is 0.89m, which is within the typical range of 0.17 to 1.55m. Flooding is unlikely at this level.
Is the river level rising or falling at Bleach Green Weir?
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.
What is a normal level for the River Ehen at Bleach Green Weir?
The typical range at this station is 0.17m to 1.55m, based on Environment Agency historical data. Levels above 1.55m 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: