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⤴Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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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
-0.736 mAOD
▼ Easing
24h Max
-0.667 mAOD
24h Min
-0.738 mAOD
Typical Range
-0.74 - 0.25
mAOD
Highest Recorded
1.14 mAOD
EA official record
0.52 in our data (since May 2022)
ⓘ
Flood alert
The Essex coast at Coalhouse Fort
High tides overnight may lead to flooding.
Flooding is possible from 11:30pm Friday 9th October through to 1:30am on Saturday 10th October.
Locations most affected will be Coalhouse Fort and car park, and the low lying land between the fort and Coalhouse Point. The detailed forecast is for a peak level at Southend of 3.55 mAODN at 12:30am, on Saturday 10th October, which is 0.56m above tide tables, Wind Force 5, Westerly. No further high tides are expected over the coming days.
We are closely monitoring the situation .
Avoid coastal roads, footpaths and carparks, which may be flooded.
This message will be updated by 9:00AM on Saturday 10 October or as the situation changes.
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. The shaded band is its 10–90% range, widened so that about 80% of recent outcomes fall inside it.
Under evaluation — not yet promoted, so treat as a second opinion.
None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow. Those nearby are listed below.
Nearby, connection not known
Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.
Anglian Water · into Trib Sandon Brook · 5.9 km away in a straight line · its watercourse is not on the river map
2 spills · 30 hours in 2025
Not discharging now · last
5 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 →
In a typical year this gauge reaches its typical high of 0.25 m
on about 3 days.
This year so far: 1 day.
20261 day so far
20251 day
20246 days
20233 days
20220 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 4 flood
areas linked to this gauge (nearest 2.0 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 Great Burstead flood history.
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.
Timing, not cause. Gauges can move together simply because the same rain fell on both.
Frequently asked questions
Is the River Crouch at Noak Bridge flooding today?
The current level is -0.74m, which is within the typical range of -0.74 to 0.25m. Flooding is unlikely at this level.
Is the river level rising or falling at Noak Bridge?
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 Crouch at Noak Bridge?
The typical range at this station is -0.74m to 0.25m, based on Environment Agency historical data. Levels above 0.25m 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:
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