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0.05

Hungerford Dun

Dun
Vale of White Horse catchment • Hungerford • West Berkshire • ID: 2239TH • Level
(34m ago) • 4 readings/hr • 149 views

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Current Level
0.053 mASD
▬ Steady
24h Max
0.053 mASD
24h Min
0.051 mASD
Typical Range
0.05 - 0.19
mASD
Highest Recorded
0.31 mASD
EA official record
A 0.45 reading (14 Feb 2014) sits in our unverified raw history and is not treated as the record
Current level is 17% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Steady over 5h
09 Oct 22:30 ▬ steady 0.053 mASD
09 Oct 22:15 ▬ steady 0.053 mASD
09 Oct 22:00 ▬ steady 0.053 mASD
09 Oct 21:45 ▬ steady 0.053 mASD
09 Oct 21:30 ▬ steady 0.053 mASD
09 Oct 21:15 ▬ steady 0.053 mASD
09 Oct 21:00 ▬ steady 0.053 mASD
09 Oct 20:45 ▬ steady 0.053 mASD
09 Oct 20:30 ▲ +0.1 cm 0.053 mASD
09 Oct 20:15 ▬ steady 0.052 mASD
09 Oct 20:00 ▬ steady 0.052 mASD
09 Oct 19:45 ▬ steady 0.052 mASD
09 Oct 19:30 ▬ steady 0.052 mASD
09 Oct 19:15 ▬ steady 0.052 mASD
09 Oct 19:00 ▬ steady 0.052 mASD
09 Oct 18:45 ▼ -0.1 cm 0.052 mASD
09 Oct 18:30 ▬ steady 0.053 mASD
09 Oct 18:00 ▬ steady 0.053 mASD
09 Oct 17:45 ▬ steady 0.053 mASD
09 Oct 17:30 0.053 mASD

Station Details

  • Monitoring Station: Hungerford Dun
  • Watercourse: River Dun
  • Nearest Town: Hungerford
  • County: West Berkshire
  • Coordinates: 51°24'53"N 1°32'22"W (51.414788, -1.539372)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1985
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 2239TH
  • RLOI id: 7120 (the EA's check-for-flooding station id)
  • EA Gauge ID: 2239TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 0 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Vale of White Horse
  • Typical Range: 0.053 – 0.190 mASD
  • Drainage Area: 101 km² upstream of this gauge
  • Flow Data: Daily mean flow (m³/s) to 7 Oct (2 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional) via EA Hydrology
  • EA Cross-check: 0.05 mASD (EA at 9 Oct 22:15)
  • 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.

Nearby Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Same river system, separate branch

Nearby

💧 Storm overflows upstream of this gauge

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.

💧
Thames Water · into River Kennet · 3.3 km away in a straight line · its water cannot be followed on the map
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into River Kennet · 4.6 km away in a straight line · its water cannot be followed on the map
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Kennet And Avon Canal · 5.2 km away in a straight line · discharges into a canal
18 spills · 267 hours in 2025
Not discharging now · last

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 →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

In a typical year this gauge reaches its typical high of 0.19 m on about 5 days. This year so far: 25 days.

2026 25 days so far
2025 10 days
2024 5 days
2023 0 days
2022 0 days
2021 0 days
2020 25 days
2019 4 days
2018 0 days
2017 0 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 2012 for the 4 flood areas linked to this gauge (nearest 1.7 km away).

1severe warning 16flood warnings 0flood alerts

Most recent flood warning: 5 Jan 2024 — River Kennet from Mildenhall to just above Hungerford

Year by year
YearSevereWarningsAlerts
2024 1 4 0
2023 0 2 0
2020 0 3 0
2019 0 1 0
2018 0 1 0
2014 0 3 0
2013 0 1 0
2012 0 1 0

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 Hungerford flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 4 areas linked to this gauge, nearest first.

Catchment Character

🌊 Groundwater-fed Slow and steady — fed largely by groundwater, so levels change gradually, not in sudden spikes.

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
0.77
groundwater-fed — slow & steady
Avg Annual Rainfall
864 mm/yr
1991–2020 · +9% since 1941–70
Urban Extent
0.4%
largely rural
Median Annual Flood
2.17 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
3.26 m³/s
1 Jan 2003 · daily mean, not the instantaneous peak
Flow-Duration Curve
mean 0.6861.510.5410.2665% (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 24%Grassland 29%Arable 45%Urban 1%
Arable 57% → 45% since 1990

Flow affected by: groundwater abstraction.

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

Station located in a mainly rural chalk based catchment dominated by a natural baseflow.

More detail

The catchment

A mainly pervious (Chalk) catchment but with appreciable Clay-with-Flints cover in the northern part of the catchment. Rural character (chiefly agricultural but the Dun drains part of Savernake Forest).

The station

Crump weir, 10.7m broad. Full range and modular.

How it measures flow

Peak flow rating based on a standard Crump Weir calculation. Flow slightly underestimated due to differences in design and actual weir dimensions.

Flow regime

Abstractions and discharges are of minor significance. Small net loss, but essentially a natural baseflow-dominated flow regime, natural to within 10% at Q95. Levels affected by the lock on the canal.

The flow record

Flat line in flows in June 2018 caused my shaft encoder wire issue, no substitute data available. Full period of record peak flow data reviewed and released in August 2021 (WINFAP Files v10).

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
Crump weir
Operating since
1968
Station datum
99.0 mAOD
Flow record
1968–2024 · 56 yrs · 100% complete
Peak-flow record
since 1968
Hydrometric area
39
Measured by
Environment Agency

Frequently asked questions

Is the River Dun at Hungerford Dun flooding today?

The current level is 0.05m, which is within the typical range of 0.05 to 0.19m. Flooding is unlikely at this level.

Is the river level rising or falling at Hungerford Dun?

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 Dun at Hungerford Dun?

The typical range at this station is 0.05m to 0.19m, based on Environment Agency historical data. Levels above 0.19m 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:

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, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →