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0.14

Ashbourne

Henmore Brook
Dove catchment • Ashbourne • Derbyshire • ID: 4058 • Level
(39m ago) • 4 readings/hr • 260 views

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Current Level
0.137 mASD
▬ Steady
24h Max
0.141 mASD
24h Min
0.135 mASD
Typical Range
0.15 - 0.35
mASD
Highest Recorded
1.96 mASD
EA official record
0.96 in our data (since Jan 1974)
Current level is 7% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Steady over 6h
24 Aug 00:30 ▬ steady 0.137 mASD
24 Aug 00:15 ▬ steady 0.137 mASD
24 Aug 00:00 ▲ +0.1 cm 0.137 mASD
23 Aug 23:45 ▬ steady 0.136 mASD
23 Aug 23:30 ▬ steady 0.136 mASD
23 Aug 23:15 ▬ steady 0.136 mASD
23 Aug 23:00 ▬ steady 0.136 mASD
23 Aug 22:45 ▬ steady 0.136 mASD
23 Aug 21:30 ▬ steady 0.136 mASD
23 Aug 21:15 ▬ steady 0.136 mASD
23 Aug 21:00 ▬ steady 0.136 mASD
23 Aug 20:45 ▬ steady 0.136 mASD
23 Aug 20:30 ▲ +0.1 cm 0.136 mASD
23 Aug 20:15 ▬ steady 0.135 mASD
23 Aug 20:00 ▼ -0.1 cm 0.135 mASD
23 Aug 19:45 ▬ steady 0.136 mASD
23 Aug 19:30 ▬ steady 0.136 mASD
23 Aug 19:15 ▬ steady 0.136 mASD
23 Aug 19:00 ▬ steady 0.136 mASD
23 Aug 18:45 0.136 mASD

Rainfall & Weather

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Flood history near this gauge

Official Environment Agency warnings issued since 2006 for the 5 flood areas linked to this gauge (nearest 0.5 km away).

17flood warnings 115flood alerts

Most recent flood warning: 23 Nov 2024River Dove from Coldwall Bridge to Okeover

Year by year
YearWarningsAlerts
2026 0 4
2025 0 12
2024 4 16
2023 4 11
2022 1 6
2021 0 6
2020 5 7
2019 0 10
2018 0 4
2017 0 1
2016 2 5
2015 0 4
2014 0 2
2013 0 5
2012 0 9
2011 0 1
2010 0 1
2009 0 1
2008 1 6
2007 0 3
2006 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 Ashbourne flood history.

Nearby Stations

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Station Details

  • Monitoring Station: Ashbourne
  • Watercourse: Henmore Brook
  • Nearest Town: Ashbourne
  • County: Derbyshire
  • Nearest reservoir: Carsington (8.9 km) · 75.5% full (as of 17 Aug 2026)
  • Coordinates: 53°0'50"N 1°44'20"W (53.013888, -1.738962)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 31 Jan 1974
  • Status: Active
  • Station Type: River level station
  • Station Reference: 4058
  • EA Gauge ID: 4058-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 2 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Dove
  • Typical Range: 0.147 – 0.351 mASD
  • Drainage Area: 38 km² upstream of this gauge
  • Flow Data: Available (m³/s) via EA Hydrology
  • EA Cross-check: 0.14 mASD (EA at 24 Aug 00:15)
  • Flow Archive: National River Flow Archive ↗

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Catchment Character

🌊 Fairly flashy Responds 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
0.45
mixed response
Avg Annual Rainfall
953 mm/yr
1991–2020 · +9% since 1941–70
Urban Extent
2.1%
largely rural
Median Annual Flood
10.60 m³/s
QMED — typical yearly peak flow
Highest Recorded Flow
9.50 m³/s
20 Oct 2023
Flow-Duration Curve
mean 0.4331.370.2430.0805% (high)% of days exceeded95% (low)
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.
Land Cover (2023)
Woodland 5%Grassland 81%Arable 1%Urban 5%Other 8%
Grassland 89% → 81% since 1990

Flow affected by: surface-water abstraction, public water supply.

Photos

Gauging-station photographs from the National River Flow Archive (UKCEH).

Photos © NRFA / UKCEH & the measuring authority — shown at web resolution. Full gallery on the NRFA ↗

About this gauge

Crump profile Flat V weir within vertical wing walls - station closed between 1984 and 1993.

More detail

The catchment

Catchment of moderate relief in South Pennines, draining Drift free Millstone Grit and Carboniferous Limestone. Predominantly forest and pasture, some moorland. 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 0.966 and 0.7447, respectively. Pre-reservoir value for FARL is 0.977, while post-reservoir cannot be calculated from the original FARL water layer.

The station

Crump profile Flat V weir, 6.0m wide, within vertical wing walls. Right bank approach built up into low floodbank. Modular limit high, but no arrangements to deal with non-modular discharge. Contains Carsington pump storage reservoir - impounded from September 1991. Station closed between 1984 and 1993. Peak flow data are for record before Carsington Reservoir. Fish baffles added to the downstream weir face in March 2021.

How it measures flow

Single rating applied across the period of record. This accounts for non-modular flow due to the high modular limit of the station. Station closed between 1984 and 1993. Remote controlled ADCP gaugings carried out within weir wing walls or a few metres upstream of the weir, across the flow range.

Flow regime

Responsive catchment affected by Carsington pump storage reservoir.

The flow record

Impounded from September 1991, and post-reservoir data marked as rejected. Rating reviewed in 2022 and data reprocessed from full period of record. Full period of record peak flow data reviewed and released in September 2019 (WINFAP Files v8).

Descriptions from the National River Flow Archive (UKCEH). NRFA station record ↗

Gauge Details

How this gauging station is built and how long it has measured (NRFA / UKCEH).

Gauge type
Flat-V weir
Operating since
1974
Station datum
116.4 mAOD
Flow record
1974–2024 · 50 yrs · 86% complete
Peak-flow record
since 1974
Hydrometric area
28
Measured by
Environment Agency

Frequently asked questions

Is the Henmore Brook at Ashbourne flooding today?

The current level is 0.14m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Ashbourne?

Based on the most recent readings, the level is currently steady. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.

What is a normal level for the Henmore Brook at Ashbourne?

The typical range at this station is 0.15m to 0.35m, based on Environment Agency historical data. Levels above 0.35m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.

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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:

Check any UK postcode’s flood risk →

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →