Bristol Avon Little Avon Axe and North Somerset St catchment
• Bristol • City of Bristol • ID: E2532 • Level
(1h ago) • 4 readings/hr • 193 views
Set water level alerts
Get notified about Bristol Netham Lock — tick as many as you like, they all share the notify settings below.
Alert me when (tick one or more)
Height for "Above a height"
Drag the line on the chart, or type a value:m
Quick pick:
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.
Notify by (tick one or more)
Your browser will ask permission, then you'll get a notification even when FloodRadar isn't open.
On iPhone: tap Share → Add to Home Screen first, then open it from there and set the alert. Show me how
Each one is saved as its own alert — pause or remove them individually any time.
Not an emergency service — if in danger call 999. Alerts rely on
EA/SEPA/NRW data and are best-efforts. Terms
Current Level
6.102 m
▼ Easing
24h Max
6.165 m
24h Min
6.091 m
Typical Range
6.00 - 6.20
m
Highest Recorded
6.23 m
EA official record
6.25 in our data (since Sep 2024)
Current level is 98% 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.
BRISTOL NETHAM LOCK (E2534) — flow at this site
7 days
A separate gauge 5 m from this one at the same site, shown here for context.
Its readings are its own and are never merged with this page's.
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.
320 storm overflows are traced upstream of this gauge, the nearest 1.4 km away along the river. 0 report discharging now, 307 report not discharging, and for 13 the monitor is offline or has not reported, so their status is not known.
Wessex Water · into Floating Harbour · 1.7 km away in a straight line · discharges to the sea, an estuary or tidal water
6 spills · 4 hours in 2025
Not discharging now · last
143 more within 6 km whose connection is not known.
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 →
In a typical year this gauge reaches its typical high of 6.20 m
on about 4 days.
This year so far: 19 days.
202619 days so far
20254 days
20243 days patchy data
Counted from each day's highest reading. Days with missing or implausible readings are left out, so a year marked patchy may have run high more often than shown.
Flood history near this gauge
Official Environment Agency warnings issued since 2007 for the 19 flood
areas linked to this gauge (nearest 1.1 km away).
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 Bristol 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.
Is the River Avon at Bristol Netham Lock flooding today?
The current level is 6.10m, which is within the typical range of 6.00 to 6.20m. Flooding is unlikely at this level.
Is the river level rising or falling at Bristol Netham 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 Avon at Bristol Netham Lock?
The typical range at this station is 6.00m to 6.20m, based on Environment Agency historical data. Levels above 6.20m 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.
Embed this gauge on your website
Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
Preview
📮 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
Log inCreate free account