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Drag the line on the chart, or type a value:mASD
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You'll be notified when this gauge is rising more than 0.10 m/hr — a sign of rapidly increasing water levels.
You'll be notified when a new storm-overflow (sewage) discharge starts within ~3 km of this gauge, based on the water companies' near-real-time feeds.
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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
0.122 mASD
▲ Rising (+6cm/hr)
24h Max
0.145 mASD
24h Min
0.033 mASD
Typical Range
-0.25 - 0.40
mASD
Highest Recorded
0.70 mASD
EA official record
A 2.35 reading (17 Nov 2025) sits in our unverified raw history and is not treated as the record
Current level is 18% of this
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
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.
Downstream level
7 days
The level on the DOWNSTREAM side of this lock/weir structure — a separate EA
measure from the main (upstream) reading shown on the Current tab. Threshold bands
are computed from this gauge's own downstream history.
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.
54 storm overflows are traced upstream of this gauge, the nearest 1.9 km away along the river. 0 report discharging now, 53 report not discharging, and for 1 the monitor is offline or has not reported, so their status is not known.
Thames Water · into Clifton Hampden Ditch · 5.9 km away in a straight line · no mapped watercourse close enough to be sure
38 spills · 378 hours in 2025
Not discharging now · last
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 →
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 Sandford-on-Thames flood history.
Flood areas linked to this gauge
Flood warnings and alerts are issued for whole areas. These are the 15 areas linked to this gauge, nearest first.
Is the River Thames at Sandford-on-Thames flooding today?
The current level is 0.12m, which is within the typical range of -0.25 to 0.40m. Flooding is unlikely at this level.
Is the river level rising or falling at Sandford-on-Thames?
Based on the most recent readings, the level is currently rising. 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 Thames at Sandford-on-Thames?
The typical range at this station is -0.25m to 0.40m, based on Environment Agency historical data. Levels above 0.40m 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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Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
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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:
FloodRadar
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