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0.08

Chandler's Ford

Monks Brook
Test and Itchen catchment • Chandler's Ford • Hampshire • ID: E12520 • Level
(28m ago) • 3 readings/hr • 171 views

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Current Level
0.077 mASD
▬ Steady
24h Max
0.084 mASD
24h Min
0.071 mASD
Typical Range
0.03 - 1.04
mASD
Highest Recorded
1.12 mASD
EA official record
A 2.85 reading (6 Aug 2021) sits in our unverified raw history and is not treated as the record
Current level is 7% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Rising · +0.3 cm over 6h
10 Sep 10:30 ▲ +0.2 cm 0.077 mASD
10 Sep 10:00 ▬ steady 0.075 mASD
10 Sep 09:45 ▼ -0.2 cm 0.075 mASD
10 Sep 09:30 ▲ +0.2 cm 0.077 mASD
10 Sep 09:15 ▲ +0.2 cm 0.075 mASD
10 Sep 08:45 ▼ -0.2 cm 0.073 mASD
10 Sep 08:30 ▬ steady 0.075 mASD
10 Sep 08:00 ▲ +0.2 cm 0.075 mASD
10 Sep 07:45 ▼ -0.2 cm 0.073 mASD
10 Sep 07:30 ▼ -0.1 cm 0.075 mASD
10 Sep 07:15 ▲ +0.1 cm 0.076 mASD
10 Sep 07:00 ▬ steady 0.075 mASD
10 Sep 06:45 ▬ steady 0.075 mASD
10 Sep 06:30 ▲ +0.1 cm 0.075 mASD
10 Sep 06:15 ▼ -0.2 cm 0.074 mASD
10 Sep 06:00 ▲ +0.3 cm 0.076 mASD
10 Sep 05:45 ▬ steady 0.073 mASD
10 Sep 05:30 ▼ -0.2 cm 0.073 mASD
10 Sep 05:15 ▲ +0.1 cm 0.075 mASD
10 Sep 05:00 0.074 mASD

Rainfall & Weather

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Flood history near this gauge

Official Environment Agency warnings issued since 2012 for the 5 flood areas linked to this gauge (nearest 0.8 km away).

7flood warnings 103flood alerts

Most recent flood warning: 27 Jan 2026Halterworth to Romsey Town Centre on the Tadburn Lake

Year by year
YearWarningsAlerts
2026 2 13
2025 1 10
2024 3 25
2023 0 14
2021 0 7
2020 0 16
2019 0 2
2016 0 2
2014 0 9
2013 1 3
2012 0 2

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 Chandler's Ford flood history.

Nearby Stations

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Station Details

  • Monitoring Station: Chandler's Ford
  • Watercourse: Monks Brook
  • Nearest Town: Chandler's Ford
  • County: Hampshire
  • Coordinates: 50°59'0"N 1°22'57"W (50.983422, -1.382474)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 3 Aug 2004
  • Status: Active
  • Station Type: River level station
  • Station Reference: E12520
  • EA Gauge ID: E12520-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: Test and Itchen
  • Datum: 18.961m AOD
  • Typical Range: 0.028 – 1.040 mASD
  • EA Cross-check: 0.08 mASD (EA at 10 Sep 10:00)

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 Monks Brook at Chandler's Ford flooding today?

The current level is 0.08m, which is within the typical range of 0.03 to 1.04m. Flooding is unlikely at this level.

Is the river level rising or falling at Chandler's Ford?

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.

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. Only about 0.0mm of rain has fallen nearby in the last 7 days, so the flow is being sustained mainly by groundwater. 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 Monks Brook at Chandler's Ford?

The typical range at this station is 0.03m to 1.04m, based on Environment Agency historical data. Levels above 1.04m 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:

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