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Water Level Easing
Easing — down from 0.20 at 16:15, now 0.18
0.18

Bray Lock

Thames ⚙ Structure
Thames from Hurley to Teddington catchment • Bray • Buckinghamshire • ID: 2607TH • Level
(26m ago) • 4 readings/hr • 138 views

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Get notified about Bray Lock — tick as many as you like, they all share the notify settings below.

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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
0.182 mASD
▼ Easing (+1cm/hr)
24h Max
0.222 mASD
24h Min
0.171 mASD
Typical Range
0.10 - 0.50
mASD
Highest Recorded
1.61 mASD
EA official record
1.43 in our data (since Nov 2012)
Current level is 11% 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 · -0.6 cm over 6h
10 Oct 01:30 ▲ +0.3 cm 0.182 mASD
10 Oct 01:15 ▲ +0.2 cm 0.179 mASD
10 Oct 01:00 ▼ -0.1 cm 0.177 mASD
10 Oct 00:45 ▼ -1 cm 0.178 mASD
10 Oct 00:30 ▲ +0.7 cm 0.188 mASD
10 Oct 00:15 ▲ +0.4 cm 0.181 mASD
10 Oct 00:00 ▼ -0.1 cm 0.177 mASD
09 Oct 23:45 ▼ -1 cm 0.178 mASD
09 Oct 23:30 ▲ +0.5 cm 0.188 mASD
09 Oct 22:30 ▲ +0.6 cm 0.183 mASD
09 Oct 22:15 ▼ -0.8 cm 0.177 mASD
09 Oct 22:00 ▲ +0.5 cm 0.185 mASD
09 Oct 21:45 ▬ steady 0.180 mASD
09 Oct 21:30 ▼ -0.2 cm 0.180 mASD
09 Oct 21:15 ▲ +0.1 cm 0.182 mASD
09 Oct 21:00 ▼ -0.1 cm 0.181 mASD
09 Oct 20:45 ▼ -0.4 cm 0.182 mASD
09 Oct 20:30 ▲ +0.4 cm 0.186 mASD
09 Oct 20:15 ▼ -0.6 cm 0.182 mASD
09 Oct 20:00 0.188 mASD

Station Details

  • Monitoring Station: Bray Lock
  • Watercourse: River Thames
  • Nearest Town: Bray
  • County: Buckinghamshire
  • Coordinates: 51°30'33"N 0°41'25"W (51.509305, -0.690320)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1997
  • Status: Active
  • Station Type: River level station (multi-sensor)
Technical details: references, datum, range, flow archive
  • Station Reference: 2607TH
  • RLOI id: 7166 (the EA's check-for-flooding station id)
  • EA Gauge ID: 2607TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 11 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: Thames from Hurley to Teddington
  • Typical Range: 0.096 – 0.500 mASD
  • EA Cross-check: 2.34 mASD (EA at 10 Oct 01:15)

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

Nearby

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.

108 storm overflows are traced upstream of this gauge, the nearest 11.1 km away along the river. 0 report discharging now, 106 report not discharging, and for 2 the monitor is offline or has not reported, so their status is not known.

💧
Thames Water · into River Thames · 11.1 km upstream along the river
2 spills · 10 hours in 2025
Not discharging now · last
💧
Thames Water · into Wye · 18.0 km upstream along the river
5 spills · 98 hours in 2025
Not discharging now · last
💧
Thames Water · into River Thames · 23.1 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Fawley Court Stream · 27.1 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Thames Water · into Thames · 27.5 km upstream along the river
4 spills · 10 hours in 2025
Not discharging now · last
💧
Thames Water · into River Loddon · 34.8 km upstream along the river
12 spills · 121 hours in 2025
Not discharging now · last
💧
Thames Water · into Ashridge Stream · 45.7 km upstream along the river
11 spills · 136 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
Thames Water · into Foudry Brook · 45.7 km upstream along the river
14 spills · 169 hours in 2025
Not discharging now · last

100 more further upstream, up to 190.1 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 Boveney Ditch · 830 m away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Status unknown — the live feed has not updated for 58 d 13 h
💧
Thames Water · into Maidenhead Ditch · 1.7 km away in a straight line · its recorded watercourse is not the one mapped beside it
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Heywood Stream · 4.9 km away in a straight line · its watercourse is not on the river map
0 spills · 0 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...

Flood history near this gauge

Official Environment Agency warnings issued since 2012 for the 19 flood areas linked to this gauge (nearest 1.9 km away).

4severe warnings 48flood warnings 108flood alerts

Most recent flood warning: 29 Nov 2024 — River Thames at Bourne End

Year by year
YearSevereWarningsAlerts
2026 0 0 6
2025 0 0 7
2024 0 10 14
2023 0 0 10
2021 0 3 8
2020 0 0 8
2019 0 0 6
2018 0 0 9
2017 0 0 4
2016 0 0 10
2015 0 0 4
2014 4 21 9
2013 0 5 7
2012 0 9 6

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 Bray 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 Thames at Bray Lock flooding today?

The current level is 0.18m, which is within the typical range of 0.10 to 0.50m. Flooding is unlikely at this level.

Is the river level rising or falling at Bray Lock?

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. 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 Thames at Bray Lock?

The typical range at this station is 0.10m to 0.50m, based on Environment Agency historical data. Levels above 0.50m 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 →