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33.03

Denmead

Wallington
East Hampshire catchment • Denmead • Hampshire • ID: E11570 • Level
(22m ago) • 4 readings/hr • 168 views

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Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA data and are best-efforts. Terms

Current Level
33.027 mAOD
▬ Steady
24h Max
33.062 mAOD
24h Min
33.027 mAOD
Typical Range
32.25 - 34.20
mAOD
Highest Recorded
35.30 mAOD
28 Mar 2005
Since Oct 2003
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -0.8 cm over 6h
24 Aug 00:30 ▬ steady 33.027 mAOD
24 Aug 00:15 ▬ steady 33.027 mAOD
24 Aug 00:00 ▬ steady 33.028 mAOD
23 Aug 23:45 ▬ steady 33.028 mAOD
23 Aug 23:30 ▼ -0.1 cm 33.028 mAOD
23 Aug 23:15 ▬ steady 33.029 mAOD
23 Aug 23:00 ▬ steady 33.029 mAOD
23 Aug 22:45 ▼ -0.2 cm 33.029 mAOD
23 Aug 21:30 ▬ steady 33.031 mAOD
23 Aug 21:15 ▬ steady 33.031 mAOD
23 Aug 21:00 ▬ steady 33.032 mAOD
23 Aug 20:45 ▬ steady 33.032 mAOD
23 Aug 20:30 ▼ -0.1 cm 33.032 mAOD
23 Aug 20:15 ▬ steady 33.033 mAOD
23 Aug 20:00 ▬ steady 33.033 mAOD
23 Aug 19:45 ▬ steady 33.033 mAOD
23 Aug 19:30 ▬ steady 33.034 mAOD
23 Aug 19:15 ▬ steady 33.034 mAOD
23 Aug 19:00 ▬ steady 33.034 mAOD
23 Aug 18:45 33.035 mAOD

Rainfall & Weather

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Flood history near this gauge

Official Environment Agency warnings issued since 2011 for the 25 flood areas linked to this gauge (nearest 0.9 km away).

1severe warning 31flood warnings 490flood alerts

Most recent flood warning: 18 Feb 2026Crosslands Drive and West Leigh, Havant, on the Lavant Stream

Year by year
YearSevereWarningsAlerts
2026 0 2 34
2025 0 0 22
2024 0 3 83
2023 0 2 47
2022 0 3 19
2021 0 1 14
2020 0 2 65
2019 0 2 32
2018 0 0 18
2017 0 0 7
2016 0 0 19
2015 0 1 6
2014 0 9 82
2013 0 4 24
2012 1 2 17
2011 0 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 Denmead flood history.

Nearby Stations

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Station Details

  • Monitoring Station: Denmead
  • Watercourse: River Wallington
  • Nearest Town: Denmead
  • County: Hampshire
  • Coordinates: 50°53'32"N 1°3'34"W (50.892259, -1.059307)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 16 Mar 2003
  • Status: Active
  • Station Type: River level station
  • Station Reference: E11570
  • EA Gauge ID: E11570-level-stage-i-15_min-mAOD
  • Parameter: Level
  • Unit: mAOD
  • Typical rise rate: 14 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: East Hampshire
  • Typical Range: 32.250 – 34.200 mAOD
  • EA Cross-check: 33.03 mAOD (EA at 24 Aug 00:15)

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

Frequently asked questions

Is the River Wallington at Denmead flooding today?

The current level is 33.03m, which is within the typical range of 32.25 to 34.20m. Flooding is unlikely at this level.

Is the river level rising or falling at Denmead?

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.

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. 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 River Wallington at Denmead?

The typical range at this station is 32.25m to 34.20m, based on Environment Agency historical data. Levels above 34.20m 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 →