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33.19

Denmead

Wallington
East Hampshire catchment • Denmead • Hampshire • ID: E11570 • Level
(23m ago) • 4 readings/hr • 187 views

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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
33.189 mAOD
▬ Steady
24h Max
33.226 mAOD
24h Min
33.189 mAOD
Typical Range
32.25 - 34.20
mAOD
Highest Recorded
34.23 mAOD
EA official record
35.30 in our data (since Oct 2003)
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -0.6 cm over 5h
08 Oct 21:00 ▬ steady 33.189 mAOD
08 Oct 20:45 ▬ steady 33.189 mAOD
08 Oct 20:30 ▬ steady 33.189 mAOD
08 Oct 20:15 ▬ steady 33.190 mAOD
08 Oct 20:00 ▬ steady 33.190 mAOD
08 Oct 19:45 ▼ -0.1 cm 33.190 mAOD
08 Oct 19:30 ▬ steady 33.191 mAOD
08 Oct 19:15 ▬ steady 33.191 mAOD
08 Oct 19:00 ▬ steady 33.191 mAOD
08 Oct 18:45 ▬ steady 33.192 mAOD
08 Oct 18:30 ▬ steady 33.192 mAOD
08 Oct 18:15 ▬ steady 33.192 mAOD
08 Oct 18:00 ▬ steady 33.192 mAOD
08 Oct 17:45 ▬ steady 33.193 mAOD
08 Oct 17:30 ▬ steady 33.193 mAOD
08 Oct 17:15 ▼ -0.1 cm 33.193 mAOD
08 Oct 17:00 ▬ steady 33.194 mAOD
08 Oct 16:45 ▬ steady 33.194 mAOD
08 Oct 16:30 ▬ steady 33.194 mAOD
08 Oct 16:15 33.195 mAOD

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
Technical details: references, datum, range, flow archive
  • Station Reference: E11570
  • RLOI id: 9192 (the EA's check-for-flooding station id)
  • EA Gauge ID: E11570-level-stage-i-15_min-mAOD
  • Parameter: Level
  • Unit: mAOD
  • 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: 33.19 mAOD (EA at 8 Oct 20:45)

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.

Connected downstream

Nearby

Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

💧 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.

💧
Southern Water · into Sheepwash Tributary · 440 m away in a straight line · no mapped watercourse close enough to be sure
36 spills · 329 hours in 2025
Not discharging now · last
💧
Southern Water · into The Potwell Tributary · 1.0 km away in a straight line · its watercourse is not on the river map
2 spills · 16 hours in 2025
Not discharging now · last
💧
Southern Water · into Tributary Of River Wallington · 3.1 km away in a straight line · its watercourse is not on the river map
1 spill · 1 hours in 2025
Status unknown — the live feed has not updated for 143 d 9 h
💧
Southern Water · into Wallington River Via Drain · 3.1 km away in a straight line · its watercourse is not on the river map
0 spills · 0 hours in 2025
Not discharging now · last
💧
Southern Water · into Unnamed Trib Of R. Wallington · 3.9 km away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now · last
💧
Southern Water · into Broom Channel · 5.7 km away in a straight line · its watercourse is not on the river map
3 spills · 2 hours in 2025
No live feed for this overflow
💧
Southern Water · into Hermitage Stream · 5.8 km away in a straight line · not connected to this gauge on the river map
0 spills · 0 hours in 2025
Not discharging now · last

2 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 →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

How often this river runs high

This gauge rarely reaches its typical high of 34.20 m: 6 days since 2017. This year so far: 2 days.

2026 2 days so far
2025 0 days
2024 3 days
2023 0 days
2022 1 day
2021 0 days
2020 0 days
2019 0 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 2011 for the 25 flood areas linked to this gauge (nearest 0.9 km away).

1severe warning 31flood warnings 494flood alerts

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

Year by year
YearSevereWarningsAlerts
2026 0 2 38
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.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 25 areas linked to this gauge, nearest first.

Show 17 more

Frequently asked questions

Is the River Wallington at Denmead flooding today?

The current level is 33.19m, 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 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

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 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 →