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0.11

Sindlesham Mill

Loddon ⚙ Structure
Loddon catchment • Sindlesham • Wokingham • ID: 2481TH • Level
(31m ago) • 4 readings/hr • 130 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
0.107 mASD
▬ Steady
24h Max
0.136 mASD
24h Min
0.107 mASD
Typical Range
0.56 - 1.19
mASD
Highest Recorded
1.45 mASD
EA official record
A 2.08 reading (10 Aug 2018) 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

Flood predictions aren't generated for lock / structure gauges — their levels are driven by gate operation, not by catchment rainfall, so the forecast models would have no skill here.

Recent Readings

Falling · -0.7 cm over 5h
09 Oct 13:30 ▬ steady 0.107 mASD
09 Oct 13:15 ▼ -0.2 cm 0.107 mASD
09 Oct 13:00 ▼ -0.1 cm 0.109 mASD
09 Oct 12:45 ▼ -0.1 cm 0.110 mASD
09 Oct 12:15 ▬ steady 0.111 mASD
09 Oct 12:00 ▬ steady 0.111 mASD
09 Oct 11:45 ▲ +0.1 cm 0.111 mASD
09 Oct 11:30 ▼ -0.2 cm 0.110 mASD
09 Oct 11:15 ▲ +0.1 cm 0.112 mASD
09 Oct 11:00 ▼ -0.1 cm 0.111 mASD
09 Oct 10:45 ▬ steady 0.112 mASD
09 Oct 10:30 ▼ -0.1 cm 0.112 mASD
09 Oct 10:00 ▼ -0.1 cm 0.113 mASD
09 Oct 09:45 ▼ -0.1 cm 0.114 mASD
09 Oct 09:30 ▲ +0.2 cm 0.115 mASD
09 Oct 09:15 ▬ steady 0.113 mASD
09 Oct 09:00 ▼ -0.1 cm 0.113 mASD
09 Oct 08:45 ▬ steady 0.114 mASD
09 Oct 08:30 ▬ steady 0.114 mASD
09 Oct 08:15 0.114 mASD

Station Details

  • Monitoring Station: Sindlesham Mill
  • Watercourse: River Loddon
  • Nearest Town: Sindlesham
  • County: Wokingham
  • Coordinates: 51°25'35"N 0°53'53"W (51.426522, -0.898188)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1997
  • Status: Active
  • Station Type: River level station
Technical details: references, datum, range, flow archive
  • Station Reference: 2481TH
  • RLOI id: 7152 (the EA's check-for-flooding station id)
  • EA Gauge ID: 2481TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 1 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: ⚙ Yes — lock, weir, sluice or pump
  • Catchment Area: Loddon
  • Typical Range: 0.560 – 1.190 mASD
  • EA Cross-check: 0.11 mASD (EA at 9 Oct 13:15)

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

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

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.

16 storm overflows are traced upstream of this gauge, the nearest 12.5 km away along the river. 0 report discharging now, 16 report not discharging.

💧
Thames Water · into Tributary Of River Blackwater · 12.5 km upstream along the river
27 spills · 325 hours in 2025
Not discharging now · last
💧
Thames Water · into Bow Brook · 18.4 km upstream along the river
26 spills · 405 hours in 2025
Not discharging now · last
💧
Thames Water · into Tributary Of The River Hart · 18.4 km upstream along the river
21 spills · 300 hours in 2025
Not discharging now · last
💧
Thames Water · into Rotherwick Brook · 19.4 km upstream along the river
8 spills · 74 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Thames Water · into River Whitewater · 22.1 km upstream along the river
7 spills · 13 hours in 2025
Not discharging now · last
💧
Thames Water · into Blackwater · 22.3 km upstream along the river
10 spills · 115 hours in 2025
Not discharging now · last
💧
Thames Water · into Fleet Brook · 23.7 km upstream along the river
39 spills · 525 hours in 2025
Not discharging now · last
💧
Thames Water · into River Loddon · 25.4 km upstream along the river
40 spills · 397 hours in 2025
Not discharging now · last

8 more further upstream, up to 36.7 km away along the river.

Nearby, connection not known

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

💧
Thames Water · into Holly Brook · 5.0 km away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Thames · 5.7 km away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now · last

3 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 1.19 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 11 flood areas linked to this gauge (nearest 0.3 km away).

31flood warnings 218flood alerts

Most recent flood warning: 27 Jan 2025 — River Loddon and River Blackwater at Swallowfield

Year by year
YearWarningsAlerts
2026 0 10
2025 1 11
2024 4 22
2023 2 19
2022 0 7
2021 1 12
2020 4 17
2019 3 10
2018 0 15
2017 0 9
2016 0 17
2015 0 6
2014 10 18
2013 4 17
2012 2 24
2011 0 4

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 Sindlesham flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 11 areas linked to this gauge, nearest first.

Show 3 more

Frequently asked questions

Is the River Loddon at Sindlesham Mill flooding today?

The current level is 0.11m, which is below the typical range. Flooding is very unlikely at this level.

Is the river level rising or falling at Sindlesham Mill?

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 Loddon at Sindlesham Mill?

The typical range at this station is 0.56m to 1.19m, based on Environment Agency historical data. Levels above 1.19m 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 →