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0.05

Osney Lock

Thames ⚙ Structure
Vale of White Horse catchment • Botley • Oxfordshire • ID: 1303TH • Level
(33m ago) • 4 readings/hr • 139 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
0.052 mASD
▬ Steady
24h Max
0.057 mASD
24h Min
-0.030 mASD
Typical Range
-0.15 - 0.12
mASD
Highest Recorded
0.34 mASD
EA official record
A 0.55 reading (17 Mar 2014) sits in our unverified raw history and is not treated as the record
Current level is 15% 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

Rising · +0.4 cm over 5h
09 Oct 22:30 ▬ steady 0.052 mASD
09 Oct 22:15 ▲ +0.1 cm 0.052 mASD
09 Oct 22:00 ▬ steady 0.051 mASD
09 Oct 21:45 ▬ steady 0.051 mASD
09 Oct 21:30 ▬ steady 0.051 mASD
09 Oct 21:15 ▼ -0.1 cm 0.051 mASD
09 Oct 21:00 ▲ +0.1 cm 0.052 mASD
09 Oct 20:45 ▬ steady 0.051 mASD
09 Oct 20:30 ▼ -0.1 cm 0.051 mASD
09 Oct 20:15 ▲ +0.1 cm 0.052 mASD
09 Oct 20:00 ▬ steady 0.051 mASD
09 Oct 19:45 ▬ steady 0.050 mASD
09 Oct 19:30 ▬ steady 0.050 mASD
09 Oct 19:15 ▬ steady 0.051 mASD
09 Oct 19:00 ▬ steady 0.051 mASD
09 Oct 18:45 ▬ steady 0.051 mASD
09 Oct 18:30 ▬ steady 0.050 mASD
09 Oct 18:15 ▲ +0.2 cm 0.050 mASD
09 Oct 18:00 ▬ steady 0.048 mASD
09 Oct 17:45 0.048 mASD

Station Details

  • Monitoring Station: Osney Lock
  • Watercourse: River Thames
  • Nearest Town: Botley
  • County: Oxfordshire
  • Nearest reservoir: Farmoor (6.0 km) · 76.0% full (as of 31 Aug 2026)
  • Coordinates: 51°44'57"N 1°16'22"W (51.749090, -1.272781)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Date Opened: 1 Jan 1995
  • Status: Active
  • Station Type: River level station (multi-sensor)
Technical details: references, datum, range, flow archive
  • Station Reference: 1303TH
  • RLOI id: 7057 (the EA's check-for-flooding station id)
  • EA Gauge ID: 1303TH-level-stage-i-15_min-mASD
  • Parameter: Level
  • Unit: mASD
  • Typical rise rate: 6 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: Vale of White Horse
  • Typical Range: -0.150 – 0.120 mASD
  • EA Cross-check: 0.05 mASD (EA at 9 Oct 22:15)

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.

31 storm overflows are traced upstream of this gauge, the nearest 7.5 km away along the river. 0 report discharging now, 30 report not discharging, and for 1 the monitor is offline or has not reported, so their status is not known.

💧
Cassington (New)🏊 Bathing water
Thames Water · into Thames · 7.5 km upstream along the river
0 spills · 0 hours in 2025
Not discharging now · last
💧
Thames Water · into Harcourt Brook · 14.5 km upstream along the river
42 spills · 709 hours in 2025
Not discharging now · last
💧
Thames Water · into River Glyme · 21.8 km upstream along the river
21 spills · 89 hours in 2025
Not discharging now · last
💧
Thames Water · into Evenlode · 22.7 km upstream along the river
30 spills · 357 hours in 2025
Not discharging now · last
💧
Thames Water · into Windrush · 23.5 km upstream along the river
98 spills · 2,214 hours in 2025
Not discharging now · last
💧
Thames Water · into River Evenlode · 30.7 km upstream along the river
13 spills · 144 hours in 2025
Not discharging now · last
💧
Thames Water · into Shill Brook · 31.4 km upstream along the river
82 spills · 926 hours in 2025
Not discharging now · last
💧
Thames Water · into River Dorn · 33.5 km upstream along the river
15 spills · 153 hours in 2025
Not discharging now · last

23 more further upstream, up to 80.4 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 Seacourt Stream · 1.7 km away in a straight line · no mapped watercourse close enough to be sure
10 spills · 40 hours in 2025
Not discharging now · last
💧
Thames Water · into Pottery Stream · 5.3 km away in a straight line · no mapped watercourse close enough to be sure
43 spills · 591 hours in 2025
Not discharging now · last

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...

Flood history near this gauge

Official Environment Agency warnings issued since 2008 for the 9 flood areas linked to this gauge (nearest 1.0 km away).

60flood warnings 72flood alerts

Most recent flood warning: 29 Nov 2024 — River Thames and tributaries at New Botley, New Hinksey, North Hinksey, South Hinksey and Grandpont

Year by year
YearWarningsAlerts
2026 0 10
2025 0 3
2024 14 8
2023 3 8
2022 0 3
2021 6 2
2020 4 4
2019 1 5
2018 0 3
2017 0 2
2016 1 5
2015 0 1
2014 16 1
2013 0 5
2012 15 4
2010 0 3
2009 0 3
2008 0 2

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 Botley flood history.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 9 areas linked to this gauge, nearest first.

Show 1 more

Frequently asked questions

Is the River Thames at Osney Lock flooding today?

The current level is 0.05m, which is within the typical range of -0.15 to 0.12m. Flooding is unlikely at this level.

Is the river level rising or falling at Osney Lock?

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 Thames at Osney Lock?

The typical range at this station is -0.15m to 0.12m, based on Environment Agency historical data. Levels above 0.12m 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 →