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Water Level Easing
Easing — down from 12.72 at 19:45, now 12.68
12.68

Chichester Tozer Way

Lavant
Arun and Western Streams catchment • Chichester • West Sussex • ID: E11100 • Level
(38m ago) • 3 readings/hr • 144 views

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⤴ Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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Current Level
12.683 mAOD
▼ Easing
24h Max
12.754 mAOD
24h Min
12.554 mAOD
Typical Range
12.55 - 14.20
mAOD
Highest Recorded
14.23 mAOD
27 Jan 2026
Since Jul 2007
🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Recent Readings

Steady over 7h
10 Oct 02:45 ▼ -1 cm 12.683 mAOD
10 Oct 02:30 ▲ +1 cm 12.695 mAOD
10 Oct 02:15 ▲ +1.0 cm 12.682 mAOD
10 Oct 01:15 ▼ -0.7 cm 12.672 mAOD
10 Oct 01:00 ▼ -0.8 cm 12.679 mAOD
10 Oct 00:45 ▲ +0.7 cm 12.687 mAOD
10 Oct 00:30 ▲ +0.2 cm 12.680 mAOD
10 Oct 00:15 ▲ +0.3 cm 12.678 mAOD
10 Oct 00:00 ▼ -1 cm 12.675 mAOD
09 Oct 23:45 ▲ +0.7 cm 12.689 mAOD
09 Oct 23:30 ▲ +4 cm 12.682 mAOD
09 Oct 22:15 ▲ +0.3 cm 12.637 mAOD
09 Oct 22:00 ▼ -2 cm 12.634 mAOD
09 Oct 21:45 ▼ -1 cm 12.651 mAOD
09 Oct 21:30 ▼ -3 cm 12.662 mAOD
09 Oct 21:15 ▲ +2 cm 12.691 mAOD
09 Oct 21:00 ▼ -4 cm 12.672 mAOD
09 Oct 20:45 ▲ +2 cm 12.715 mAOD
09 Oct 20:30 ▲ +0.8 cm 12.691 mAOD
09 Oct 20:15 12.683 mAOD

Station Details

  • Monitoring Station: Chichester Tozer Way
  • Watercourse: River Lavant
  • Nearest Town: Chichester
  • County: West Sussex
  • Coordinates: 50°50'16"N 0°46'8"W (50.837894, -0.768879)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jul 2007
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: E11100
  • RLOI id: 9244 (the EA's check-for-flooding station id)
  • EA Gauge ID: E11100-level-stage-i-15_min-mAOD
  • Parameter: Level
  • Unit: mAOD
  • Typical rise rate: 13 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Catchment Area: Arun and Western Streams
  • Typical Range: 12.550 – 14.200 mAOD
  • EA Cross-check: 12.70 mAOD (EA at 10 Oct 02:30)

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

Same river system, separate branch

Nearby

💧 Storm overflows upstream of this gauge

Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.

1 storm overflow is traced upstream of this gauge. 0 report discharging now, 1 reports not discharging.

💧
Lavant WwTW🦪 Shellfish
Southern Water · into River Lavant & Gw Via Wetland · upstream (distance along the river not measured)
166 spills · 3,583 hours in 2025
Not discharging now · last
Reaches the river through a sewer, so where it enters is approximate.

Nearby, connection not known

Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.

💧
Chichester WwTW🦪 Shellfish
Southern Water · into Chichester Harbour · 3.2 km away in a straight line · discharges to the sea, an estuary or tidal water
62 spills · 985 hours in 2025
Not discharging now · last
💧
Chichester WwTW🦪 Shellfish
Southern Water · into Chichester Harbour · 3.2 km away in a straight line · discharges to the sea, an estuary or tidal water
4 spills · 4 hours in 2025
Not discharging now · last
💧
Southern Water · into Trib Of Chichester Harbour · 3.3 km away in a straight line · discharges to the sea, an estuary or tidal water
8 spills · 46 hours in 2025
Not discharging now · last
💧
Main Road Hunston CEO🦪 Shellfish
Southern Water · into Bremere Rife · 3.4 km away in a straight line · no mapped watercourse close enough to be sure
4 spills · 33 hours in 2025
Not discharging now · last
💧
Southern Water · into Aldingbourne Rife · 5.1 km away in a straight line · its watercourse is not on the river map
10 spills · 138 hours in 2025
Not discharging now · last
💧
Southern Water · into Chichester Harbour · 5.9 km away in a straight line · discharges to the sea, an estuary or tidal water
3 spills · 8 hours in 2025
Not discharging now · last

1 other overflow within 6 km is downstream of this gauge or on another branch of the river network, so it is 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 14.20 m: 1 day since 2017. This year so far: 1 day.

2026 1 day 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 2012 for the 19 flood areas linked to this gauge (nearest 0.5 km away).

55flood warnings 296flood alerts

Most recent flood warning: 30 Mar 2025 — Bosham and West Itchenor

Year by year
YearWarningsAlerts
2026 0 26
2025 1 6
2024 4 42
2023 9 27
2022 1 19
2021 0 10
2020 4 32
2019 5 15
2018 2 11
2017 1 6
2016 0 10
2015 0 11
2014 12 51
2013 3 12
2012 13 18

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 Chichester flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 19 areas linked to this gauge, nearest first.

Show 11 more

Frequently asked questions

Is the River Lavant at Chichester Tozer Way flooding today?

The current level is 12.68m, which is within the typical range of 12.55 to 14.20m. Flooding is unlikely at this level.

Is the river level rising or falling at Chichester Tozer Way?

Based on the most recent readings, the level is currently falling slightly. 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 8.8mm 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 River Lavant at Chichester Tozer Way?

The typical range at this station is 12.55m to 14.20m, based on Environment Agency historical data. Levels above 14.20m 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 →