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0.59

Easton

Itchen
Test and Itchen catchment • Easton • Hampshire • ID: 3101SE • Level
(1h ago) • 4 readings/hr • 221 views

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Current Level
0.586 mASD
▬ Steady
24h Max
0.597 mASD
24h Min
0.578 mASD
Typical Range
0.51 - 1.10
mASD
Highest Recorded
1.46 mASD
EA official record
A 2.36 reading (27 Jul 2004) sits in our unverified raw history and is not treated as the record
Current level is 40% of this
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -0.7 cm over 6h
08 Oct 01:30 ▼ -0.4 cm 0.586 mASD
08 Oct 01:15 ▲ +0.1 cm 0.590 mASD
08 Oct 01:00 ▲ +0.3 cm 0.589 mASD
08 Oct 00:45 ▼ -0.4 cm 0.586 mASD
08 Oct 00:30 ▲ +0.3 cm 0.590 mASD
08 Oct 00:00 ▼ -0.2 cm 0.587 mASD
07 Oct 23:45 ▼ -0.4 cm 0.589 mASD
07 Oct 23:30 ▲ +0.2 cm 0.593 mASD
07 Oct 22:30 ▲ +0.1 cm 0.591 mASD
07 Oct 22:15 ▼ -0.2 cm 0.590 mASD
07 Oct 22:00 ▬ steady 0.592 mASD
07 Oct 21:45 ▲ +0.1 cm 0.592 mASD
07 Oct 21:30 ▼ -0.1 cm 0.591 mASD
07 Oct 21:15 ▼ -0.1 cm 0.592 mASD
07 Oct 21:00 ▲ +0.2 cm 0.593 mASD
07 Oct 20:30 ▬ steady 0.591 mASD
07 Oct 20:15 ▬ steady 0.591 mASD
07 Oct 20:00 ▼ -0.3 cm 0.591 mASD
07 Oct 19:45 ▲ +0.1 cm 0.594 mASD
07 Oct 19:30 0.593 mASD

Station Details

  • Monitoring Station: Easton
  • Watercourse: River Itchen
  • Nearest Town: Easton
  • County: Hampshire
  • Coordinates: 51°5'20"N 1°16'22"W (51.088829, -1.272900)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1998
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 3101SE
  • RLOI id: 1054 (the EA's check-for-flooding station id)
  • EA Gauge ID: 3101SE-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
  • Typical Range: 0.511 – 1.100 mASD
  • Drainage Area: 237 km² upstream of this gauge
  • Flow Data: Daily mean flow (m³/s) (no daily rows yet) via EA Hydrology
  • EA Cross-check: 0.59 mASD (EA at 8 Oct 01:45)
  • 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.

Connected upstream

Connected downstream

Same river system, separate branch

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 Groundwaters Via 2 Infilt Syst · 4.7 km away in a straight line · discharges to ground
0 spills · 0 hours in 2025
Not discharging now · last
💧
Southern Water · into Groundwaters Via 2 Infilt Syst · 5.1 km away in a straight line · discharges to ground
7 spills · 14 hours in 2025
No live feed for this overflow

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 1.10 m: 0 days since 2017. This year so far: 0 days.

2026 0 days so far
2025 0 days
2024 0 days
2023 0 days
2022 0 days
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 5 flood areas linked to this gauge (nearest 2.0 km away).

20flood warnings 57flood alerts

Most recent flood warning: 9 May 2023 — Ovington to Abbots Worthy on the River Itchen

Year by year
YearWarningsAlerts
2026 0 8
2024 0 7
2023 2 2
2020 0 11
2014 18 25
2013 0 1
2012 0 2
2011 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 Easton flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 5 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
0.95
groundwater-fed — slow & steady
Avg Annual Rainfall
929 mm/yr
1991–2020 · +5% since 1941–70
Urban Extent
1.2%
largely rural
Highest Daily Mean Flow
14.92 m³/s
12 Feb 2014 · daily mean, not the instantaneous peak
Flow-Duration Curve
mean 4.387.214.032.625% (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 12%Grassland 28%Arable 57%Urban 3%

Flow affected by: reservoir influence, public water supply, 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

Electromagnetic gauging station with insulated bed.

More detail

The catchment

A predominantly Chalk catchment with significant patches of superficial deposits. Largely rural with some woodland and scattered settlements.

The station

Installed 1983 - calibration confirmed by current-meter. Superseded a velocity-area station heavily affected by weed growth; weekly weed cutting can be necessary. Slight narrowing of channel upstream of section to flush out gravel and maintain a clear section. This has caused a small riffle in the centre of the section.

How it measures flow

Ultrasonics employed as backup and for high flows at same site; performs well at high flows. Limited stage and velocity range makes for effective operation. As the hut is near the bridge and not near the gauging station there are problems with signal degradation during transfer between the two locations.

Flow regime

Largely natural baseflow-dominated regime (some abstraction for cress beds) but groundwater augmentation during severe droughts.

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
Electromagnetic
Operating since
1975
Station datum
41.7 mAOD
Flow record
1975–2024 · 49 yrs · 98% complete
Hydrometric area
42
Measured by
Environment Agency

Frequently asked questions

Is the River Itchen at Easton flooding today?

The current level is 0.59m, which is within the typical range of 0.51 to 1.10m. Flooding is unlikely at this level.

Is the river level rising or falling at Easton?

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 Itchen at Easton?

The typical range at this station is 0.51m to 1.10m, based on Environment Agency historical data. Levels above 1.10m 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 →