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Flow Falling

TREBROWNBRIDGE

Unknown
• ID: E44973 (formerly SX25F064) • Flow
⚙ The Environment Agency registered this site as SX25F064 until 2 Aug 2026; its history is included on this page.
(31m ago) • 3 readings/hr • 140 views
Current Flow
1.420 m3/s?
▼ Falling (+2cm/hr)
24h Max
2.195 m3/s
24h Min
1.409 m3/s
Typical Range
-
Highest Recorded
16.20 m3/s
27 Jan 2026
Since Feb 2025
🚽 Sewage overflows nearby

Recent Flow Readings

🌍 floodradar.co.uk
1 day

Recent Readings

Falling · -12 cm over 7h
26 Oct 03:15 ▲ +1 cm 1.420 m3/s
26 Oct 03:00 ▬ steady 1.409 m3/s
26 Oct 02:45 ▼ -3 cm 1.409 m3/s
26 Oct 01:30 ▲ +2 cm 1.443 m3/s
26 Oct 01:15 ▼ -5 cm 1.420 m3/s
26 Oct 01:00 ▲ +2 cm 1.466 m3/s
26 Oct 00:45 ▬ steady 1.443 m3/s
26 Oct 00:30 ▼ -3 cm 1.443 m3/s
26 Oct 00:15 ▲ +3 cm 1.477 m3/s
26 Oct 00:00 ▼ -1 cm 1.443 m3/s
25 Oct 23:45 ▼ -1 cm 1.454 m3/s
25 Oct 23:30 ▼▼ -6 cm 1.466 m3/s
25 Oct 23:15 ▲▲ +8 cm 1.524 m3/s
25 Oct 23:00 ▼ -5 cm 1.443 m3/s
25 Oct 22:45 ▼ -3 cm 1.489 m3/s
25 Oct 21:30 ▬ steady 1.524 m3/s
25 Oct 21:15 ▬ steady 1.524 m3/s
25 Oct 21:00 ▼ -2 cm 1.524 m3/s
25 Oct 20:45 ▲ +1 cm 1.547 m3/s
25 Oct 20:30 1.535 m3/s

Station Details

  • Monitoring Station: TREBROWNBRIDGE
  • Watercourse: —
  • Nearest reservoir: Siblyback (12.7 km) · 23.0% full (as of 18 Oct 2026)
  • Coordinates: 50°24'38"N 4°23'40"W (50.410438, -4.394536)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Status: Active
  • Station Type: Flow gauging station (inferred)
Technical details: references, datum, range, flow archive
  • Station Reference: E44973
  • Previous references: SX25F064 (to 2 Aug 2026)
  • Also at this site: Trebrownbridge (49132, level, reporting)
  • EA Gauge ID: E44973-flow-water-i-15_min-m3_s
  • Parameter: Flow
  • Unit: m3/s?
  • Typical rise rate: 5 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~22 min (measured reading→publication lag)
  • Tidal: No
  • Lock / structure: No
  • Drainage Area: 39 km² upstream of this gauge
  • Flow Archive: National River Flow Archive ↗

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.

Nearby

At this site

💧 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.

6 storm overflows are traced upstream of this gauge, the nearest 3.4 km away along the river. 0 report discharging now, 6 report not discharging.

💧
South West Water · into Tributary Of The River Seaton · 3.4 km upstream along the river
12 spills · 107 hours in 2025
Not discharging now · last
💧
Menheniot WwTW🏊 Bathing water
South West Water · into Tributary Of The River Seaton · 3.4 km upstream along the river
131 spills · 1,575 hours in 2025
Not discharging now · last
💧
Church Square CSO🏊 Bathing water
South West Water · into Tributary Of The River Seaton · 3.8 km upstream along the river
12 spills · 57 hours in 2025
Not discharging now · last
💧
Scawns Hill CSO🏊 Bathing water
South West Water · into Tributary Of The River Seaton · 4.5 km upstream along the river
10 spills · 25 hours in 2025
Not discharging now · last
💧
South West Water · into Tremar Stream · 11.3 km upstream along the river
67 spills · 1,096 hours in 2025
Not discharging now · last
Placed on the river by its position alone.
💧
South West Water · into River Seaton (S) · 12.3 km upstream along the river
40 spills · 184 hours in 2025
Not discharging now · last

Nearby, connection not known

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

💧
South West Water · into Tributary Of The River Tiddy · 5.3 km away in a straight line · no mapped watercourse close enough to be sure
34 spills · 21 hours in 2025
Not discharging now · last
💧
Seaton Pumping Station🏊 Bathing water
South West Water · into English Channel · 5.3 km away in a straight line · discharges to the sea, an estuary or tidal water
67 spills · 1,071 hours in 2025
Not discharging now · last
💧
South West Water · into Polbathic Stream(S) · 5.5 km away in a straight line · its recorded watercourse is not the one mapped beside it
16 spills · 6 hours in 2025
Not discharging now · last
💧
South West Water · into Blunts Stream (S)(Lyhner Trib) · 5.7 km away in a straight line · its watercourse is not on the river map
11 spills · 3 hours in 2025
Not discharging now · last
💧
South West Water · into West Looe River (S) · 6.0 km away in a straight line · no mapped watercourse close enough to be sure
0 spills · 0 hours in 2025
Not discharging now · last

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. Sewage & storm overflows →

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 2011 for the 4 flood areas linked to this gauge (nearest 0.2 km away).

35flood warnings 133flood alerts

Most recent flood warning: 2 Feb 2026 — South Cornwall coast from Gribbin Head to Rame Head

Year by year
YearWarningsAlerts
2026 2 18
2025 4 16
2024 6 22
2023 3 9
2022 0 2
2021 0 3
2020 8 15
2019 3 6
2018 2 10
2017 0 1
2016 3 10
2015 0 4
2014 2 4
2013 0 3
2012 2 6
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.

Flood areas linked to this gauge

Flood warnings and alerts are issued for whole areas. These are the 4 areas linked to this gauge, nearest first.

Catchment Character

🌊 Mixed response A balance of quick runoff and slower groundwater baseflow.

Your catchment is all the land that drains rainfall into the river above this gauge. Its character — how steep, wet, wooded, urban or chalky that land is — decides how fast rain here turns into a rising river. A steep, bare or clay catchment is “flashy” (rises and falls quickly, floods easily); a flat, chalk or well-wooded one is slow and steady. The tiles below put numbers to that; the flow-duration curve reads left-to-right from the river’s typical high flows (Q5) down to its low flows (Q95) — a steep curve means a flashy river.

The physical character of the land that drains to this gauge, and how it shapes its flood response — from the National River Flow Archive (UKCEH).

Baseflow Index
0.59
mixed response
Avg Annual Rainfall
1,410 mm/yr
1991–2020 · +1% since 1941–70
Urban Extent
1.7%
largely rural
Median Annual Flood
7.39 m³/s
QMED — typical yearly peak flow
Highest Daily Mean Flow
13.20 m³/s
22 Dec 2012 · daily mean, not the instantaneous peak
Flow-Duration Curve
mean 1.083.010.7500.2275% (high)% of days exceeded95% (low)
Daily flow (m³/s) exceeded each % of the time — a steep curve is flashy, a flat one is steady. Q5 high · Q50 median · Q95 low.
Land Cover (2023)
Woodland 7%Grassland 66%Arable 19%Urban 7%
Grassland 74% → 66% since 1990

Flow affected by: groundwater abstraction, industrial / agricultural abstraction.

Photos

Gauging-station photographs from the National River Flow Archive (UKCEH).

Photos © NRFA / UKCEH & the measuring authority — shown at web resolution. Full gallery on the NRFA ↗

About this gauge

Three-bay compound Crump profile weir with minimal artificial interference with natural flow regime.

More detail

The catchment

Rises on the Caradon Hill granites. Elongated, linear catchment springing from southernmost outcrop of Bodmin Granite. Great bulk of the catchment on Devonian slates and shales interspersed with tuffs and lavas. Moderate relief. Land use is low-grade agriculture, grazing and some afforestation. No major changes to catchment.

The station

Three-bay compound Crump profile weir, middle crest length 3m and side crests 4m each (total 11m). Wing walls and floodbanks at 2.05m.

How it measures flow

Thought to be fully modular but evidence suggests that in 2012 when twice, the peak level reached more than 1m stage, the weir may have drowned. This is still to be confirmed. Upstream subject to significant siltation/sedimentation. Weed growth problems. Two peak flow ratings applied across period of record.

Flow regime

Natural to within 10% at Q95, minimal interference with natural flow regime.

The flow record

Peak flows rejected 1971-2006 as stilling well issues causing significant under-recording of peak river levels. Full period of record peak flow data reviewed and released in September 2023 (WINFAP Files v12).

Descriptions from the National River Flow Archive (UKCEH). NRFA station record ↗

Gauge Details

How this gauging station is built and how long it has measured (NRFA / UKCEH).

Gauge type
Gauging structure
Operating since
1972
Station datum
26.6 mAOD
Flow record
1957–2024 · 67 yrs · 84% complete
Peak-flow record
since 1972
Hydrometric area
48
Measured by
Environment Agency

Frequently asked questions

Is TREBROWNBRIDGE flooding today?

The latest recorded level is 1.42m3/s. Compare it with the recent history on the chart above to judge whether levels are unusually high.

Is the river level rising or falling at TREBROWNBRIDGE?

Based on the most recent readings, the level is currently falling. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

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.

Embed this gauge on your website

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:

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 →