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D−Hazard risk Grade
Flood & hazards in Keadby · Environment Agency

More of Keadby’s homes are at high or medium flood risk than in 100% of UK towns: 59%, from rivers or the sea

On the Environment Agency’s maps, which allow for flood defences, “high or medium” means at least a 1 in 100 chance of flooding from rivers or the sea in any year. Hazard risk puts Keadby at D−.

In brief

What stands out about Keadby’s hazards

From the Environment Agency’s maps and records and the BGS radon atlas, below.

By hazard

What Keadby faces

Each hazard against its own yardstick; meters run from low to high on that yardstick.

Not on this page: coastal erosion, subsidence and shrink-swell ground (the British Geological Survey licenses it), groundwater flooding and reservoir failure.
Hazard risk Grade

Keadby grades D− for hazard risk

Flood risk from rivers and the sea, against all UK towns.

Homes at high or medium flood risk (59%)Fewer than 0% of UK towns

The share of homes at high or medium risk from rivers and the sea, ranked against every UK town of 1,000 or more: fewer homes at risk is better. Towns with none at high or medium risk are ordered by their share at low risk, so they don’t all share one score. Surface water and radon aren’t graded: they are described below.

Flood map

Where the water goes in Keadby

Turn layers on and off. Blue is the risk from rivers and the sea; pink is where heavy rain collects. Both allow for flood defences.

Recorded flood: 2013© OpenStreetMap contributors · EA NaFRA2
HighMediumLowrivers & seaHighMediumLowsurface waterKeadby’s built-up area

The river and sea risk follows the River Trent. Surface-water risk is patchier: dips, underpasses and small streams.

Rivers and the sea

59% of Keadby’s homes are at high or medium risk from rivers or the sea

The Environment Agency’s national map, allowing for defences. A further 29% are at low risk.

High risk11%of homes · 1 in 30 a year or more72 homes, EA count
Medium risk48%of homes · 1 in 30 to 1 in 100311 homes, EA count
Low risk29%of homes · 1 in 100 to 1 in 1,000185 homes, EA count
Where Keadby sits among 3,735 UK towns
35%None
23%Under 0.5%
9%0.5–1%
11%1–2%
11%2–5%
5%5–10%
3%10–20%
2%20% +Keadby

Share of each UK town’s homes at high or medium risk from rivers and the sea. 35% of UK towns have none; Keadby has more than 100% of towns.

The Environment Agency’s Risk of Flooding from Rivers and Sea (NaFRA2, June 2026) counts each postcode’s homes by band; the shares weight those postcodes by Census 2021 households. The EA counts include homes built since 2021.

Surface water

Rivers and the sea, more than heavy rain, are Keadby’s flood risk

Surface water is rain that falls faster than drains and the ground can take it. It is mapped separately from rivers and the sea, and it is not in the Hazard risk Grade.

Surface water11%
Rivers and the sea59%
0%45.5%91% of homes

About 3.5% of homes are at high risk of surface-water flooding (a 1 in 30 chance or more each year) and 7.1% at medium risk: roughly 60 households. A further 12% face a low risk from surface water. That is more than 93% of UK towns.

~60
households at high or medium risk
12%
of homes at low risk
93%
of UK towns have a smaller share
783
addresses read on the map

Our estimate: every address in the village (ONS NSUL) read on the Environment Agency’s Risk of Flooding from Surface Water map (NaFRA2, 2025), each postcode’s share weighted by its Census 2021 households. Neither agency publishes a count of homes for surface water, so treat it as a guide; one street can differ from the next.

Flood history

Keadby has flooded in 1 recorded year since 2013

Every flood the Environment Agency has mapped inside Keadby’s built-up area, newest first. The record is fullest for big river floods; small and surface-water floods are often missing.

  1. 2013December 2013: The sea came in4 hectares inside today’s built-up area
The worst: 20134 ha

Floodwater covered 4 hectares of what is now Keadby in 2013, the largest flood the record holds here (December).

24 of Keadby’s households today live inside the outline of a recorded flood.

River levels

The River Trent at Keadby: highest 6.31 m, in December 2013

The highest level each winter (October to September) at the Environment Agency’s Keadby gauge, since 1993. The river normally runs between -0.44 m and 3.95 m here.

Highest level each winter, metres
Winter 1993–94: highest 6.38 m · 290 days above the normal rangeWinter 1994–95: highest 6.52 m on 1 February 1995 · 307 days above the normal rangeWinter 1995–96: highest 6.16 m · 290 days above the normal rangeWinter 1996–97: highest 6.49 m on 9 February 1997 · 289 days above the normal rangeWinter 1997–98: highest 6.24 m · 290 days above the normal rangeWinter 1998–99: highest 6.37 m · 295 days above the normal rangeWinter 1999–00: highest 6.17 m · 295 days above the normal rangeWinter 2000–01: highest 6.20 m · 303 days above the normal rangeWinter 2001–02: highest 6.29 m · 304 days above the normal rangeWinter 2002–03: highest 6.32 m · 305 days above the normal rangeWinter 2003–04: highest 6.02 m · 290 days above the normal rangeWinter 2004–05: highest 6.34 m · 262 days above the normal rangeWinter 2005–06: highest 6.39 m · 266 days above the normal rangeWinter 2006–07: highest 6.40 m · 283 days above the normal rangeWinter 2007–08: highest 6.23 m · 288 days above the normal rangeWinter 2008–09: highest 6.01 m · 258 days above the normal rangeWinter 2010–11: highest 6.06 m · 280 days above the normal rangeWinter 2011–12: highest 5.91 m · 294 days above the normal rangeWinter 2012–13: highest 6.29 m · 299 days above the normal rangeWinter 2013–14: highest 7.36 m on 5 December 2013 · 297 days above the normal rangeWinter 2014–15: highest 6.14 m · 300 days above the normal rangeWinter 2015–16: highest 6.12 m · 300 days above the normal rangeWinter 2016–17: highest 6.02 m · 296 days above the normal rangeWinter 2017–18: highest 5.86 m · 285 days above the normal rangeWinter 2018–19: highest 6.30 m · 279 days above the normal rangeWinter 2019–20: highest 6.48 m · 297 days above the normal rangeWinter 2020–21: highest 6.02 m · 288 days above the normal rangeWinter 2021–22: highest 7.80 m on 20 March 2022 · 277 days above the normal rangeWinter 2022–23: highest 10.25 m on 28 July 2023 · 271 days above the normal rangeWinter 2023–24: highest 6.47 m · 298 days above the normal rangeWinter 2024–25: highest 6.30 m · 288 days above the normal rangeWinter 2025–26: highest 6.06 m · 299 days above the normal range’22–23’21–22’13–14Record 6.31 m, 2013Top of normal range
1993–942025–26
The highest days on record
  • 28 July 202310.25 m
  • 9 January 20237.81 m
  • 20 March 20227.80 m
  • 3 May 20227.80 m
  • 15 September 20227.80 m
  • 5 December 20137.36 m

The River Trent has topped its normal range on 9,263 days since 1993, most in the winters of 1994–95 and 2002–03. By its highest day, the winter of 2025–26 was the 25th-highest of the 32.

Environment Agency Hydrology API, Keadby (station 4098), daily maximum level; the record and normal range from the EA’s stage scale. Live river levels are on GOV.UK’s Check for flooding.

Flood warnings

No flood warning or alert is in force for Keadby · 2 warnings in 20 years

The Environment Agency has 2 flood warning areas and 2 alert areas reaching into the village; warnings since the service began in 2006.

Now: no flood warnings or alerts for Keadby (checked 14 November 2026, 21:34). Check for flooding on GOV.UK →
Warnings and alerts each year for areas in Keadby
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Flood warning (flooding expected)Flood alert (flooding possible)

Of the 2 warnings, 2 were for River Trent at Keadby. 2013 had the most warnings (2); 2024 the most alerts (7).

The most recent warning was on 5 December 2013.

Show the 4 warning and alert areas
AreaKindSince 2006Now
River Trent at KeadbyWarning area2None
River Trent at CrowleWarning area0None
Tidal Trent for riverside areas from Gainsborough to the Humber confluenceAlert area29None
Tidal Trent wider floodplain from Gainsborough to the Humber confluenceAlert area1None

Environment Agency Historic Flood Warnings (first issues only, not updates; “flood watch” counted as an alert before 2011) and the real-time flood-monitoring API. Sign up for free warnings on GOV.UK or call Floodline, 0345 988 1188.

Radon

Keadby is in the lowest radon band

Radon is a natural radioactive gas from the ground; long exposure raises the risk of lung cancer. The atlas gives the chance that a home in each 1 km square is above the UK action level (200 Bq/m³).

SE8211: Under 1% of homes above the action levelSE8212: Under 1% of homes above the action levelSE8310: Under 1% of homes above the action levelSE8311: Under 1% of homes above the action levelSE8312: Under 1% of homes above the action levelSE8410: Under 1% of homes above the action level© OpenStreetMap contributors · BGS/UKHSA
Under 1%
Share of the village’s area in each band
Under 1% of homes100%

Every 1 km square over Keadby is in the lowest band: fewer than 1 in 100 homes are expected to be above the action level.

BGS/UKHSA Indicative Atlas of Radon in Great Britain, version 3. Check an address at UKradon.org.

Neighbours

Flood risk in the places around Keadby

Share of homes at high or medium and at low risk from rivers and the sea. Tap a town for its page.

ABCD
TownPeopleHigh or mediumLowHazard
Keadby1,44659%29%D−
Scunthorpe81,286under 0.1%under 0.1%B
Crowle3,9692.7%6.2%C−
Belton2,3030.7%0.1%C+
Burton upon Stather2,3700.6%0.3%C+
Messingham3,3750%under 0.1%B+
Epworth4,3610%1.9%B+
Owston Ferry1,1560.8%6.9%C+

Keadby has more homes at high or medium risk than any neighbour in the table. Messingham and Epworth have none.

Be ready

Get ready for what Keadby faces

Free warnings, what to do in a cloudburst, and what to check before you move.

Get the warnings
  • Sign up free for Environment Agency flood warnings by text, call or email.
  • Floodline: 0345 988 1188, 24 hours.
  • Keadby’s warning areas include River Trent at Keadby and River Trent at Crowle.
Sign up ↗
In a cloudburst
  • Surface water rises in minutes, often with no warning issued: stay out of underpasses and dips.
  • Keep the gullies and drains outside your home clear of leaves.
  • Report a blocked road drain to the council.
When the river rises
  • Never walk or drive through floodwater: 30 cm of moving water can float a car.
  • Move valuables, papers and medicines upstairs.
  • Turn off gas, electricity and water if you’re told to.
Before you buy or rent in Keadby
  • Check the address on GOV.UK’s long-term flood risk service: it gives rivers and sea and surface water separately.
  • Ask whether the home has flooded or had a flood insurance claim; the TA6 property form asks the seller.
  • Homes built before 2009 can get flood cover through Flood Re, the government-backed scheme; newer homes can’t.
How to read these numbers

What this data can and can’t tell you

  • Defences are counted. Both agencies’ maps allow for flood defences and the chance they are overtopped or fail, so a town behind a defence scheme can show few homes at high risk and many at low risk.
  • Surface water is our estimate. Neither agency publishes a count of homes at risk from surface water, so we read each address on the map. A flat on a hill and a basement in a dip can share a postcode.
  • Past floods are what was recorded. The flood outlines come from surveys, aerial photographs and reports; many small floods, and most surface-water floods, were never mapped.
  • One town, many streets. Risk is street by street. Check a specific address on GOV.UK’s long-term flood risk service before you buy or rent.

Check the long-term flood risk for an address on GOV.UK →

Questions about flooding and hazards in Keadby

Does Keadby flood?

The last flood the Environment Agency recorded inside the village was in December 2013. 59% of homes are at high or medium risk from rivers and the sea on the Environment Agency’s maps, which allow for flood defences. About 11% of homes are at high or medium risk from surface water, when heavy rain overwhelms the drains. Keadby grades D− for hazard risk against UK towns.

Which parts of Keadby are at risk of flooding?

From rivers and the sea, the places the Environment Agency warns directly: River Trent at Keadby and River Trent at Crowle. Surface water can collect in low spots anywhere in the village. Check a specific address on GOV.UK’s long-term flood risk service.

When did Keadby last flood?

The recorded flood outlines inside the village run from 2013 to 2013 (1 years); the largest was in 2013. Flood warnings have been issued for parts of the village since 2006, most recently on 5 December 2013.

Is Keadby at risk of surface water flooding?

About 3.5% of homes are at high risk and 7.1% at medium risk from surface water, against 59% at high or medium risk from rivers and the sea. Surface water floods come with little warning, and the agencies don’t issue warnings for them.

Is radon a problem in Keadby?

Not by the atlas: every 1 km square over Keadby is in the lowest band, where fewer than 1 in 100 homes are expected to be above the action level.

Are there flood warnings in Keadby now?

No flood warning or alert was in force near Keadby at 14 November 2026, 21:34. Live warnings are on GOV.UK’s Check for flooding service and Floodline, 0345 988 1188.

Contains Environment Agency information © Environment Agency and/or database right 2026. Contains British Geological Survey materials © UKRI 2026.

Sources: Environment Agency Risk of Flooding from Rivers and Sea, postcodes in areas at risk (June 2026); Natural Resources Wales Flood Risk Assessment Wales (May 2026); ONS Census 2021 households by postcode · Environment Agency Risk of Flooding from Surface Water (NaFRA2, 2025) and Natural Resources Wales Flood Risk Assessment Wales surface water and small watercourses, read at every address (ONS National Statistics UPRN Lookup, September 2026) and weighted by Census 2021 households by postcode · Environment Agency Recorded Flood Outlines and Natural Resources Wales historic flood map, inside the ONS 2022 built-up-area boundary · Environment Agency Hydrology API (daily maximum river level) and flood-monitoring stage scales · Environment Agency real-time flood-monitoring API · Environment Agency Historic Flood Warnings (January 2006 to June 2026) and flood warning and alert areas · BGS/UKHSA Indicative Atlas of Radon in Great Britain, version 3, by 1 km square · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.