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Immingham, North East Lincolnshire
Up to Very low likelihood
Properties in DN40 2DB sit in the Environment Agency's Very low flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.
| Likelihood band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 0 | 0 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 8 | 8 |
Over a 25-year mortgage, a property in a very low-likelihood area has less than a 3% chance of flooding at least once.
The ground here sits at about 4 m above sea level and falls 9 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-north-west, 2.2 m higher.
Because properties in the very low likelihood band; 5 recorded floods nearby; 117 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around DN40 2DB. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.
Warnings cover flood areas, not individual addresses.
| Date | Recorded flood | Approx. distance |
|---|---|---|
| Feb 2020 | 2020 February Flood Incident - Storm Dennis | ~51.5 km |
| Feb 2020 | 2020 February Flood Incident - Storm Ciara | ~61.5 km |
| Nov 2019 | 2019 November Flood Incident | ~66.9 km |
| Dec 2013 | LNA_2013_12_Tidal_Witham_Haven | ~11.7 km |
| Jan 1953 | LNA_1953_01_Lincolnshire Coastline | ~34.0 km |
EA Recorded Flood Outlines — absence of a record never proves a place has not flooded. The full report tests whether any extent covered the exact spot.
2013-14 UK winter floods (2013, 16 warnings nearby) · 2007 UK floods (2007, 8 warnings nearby) · Emma (2018, 2 warnings nearby) · Ashley (2024, 1 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| River Freshney Grimsby | Laceby Beck | 8.8 km | 0.78 m | 1.20 m |
| Laceby | Laceby Beck | 8.9 km | 0.55 m | 1.44 m |
| LACEBY BECK GS | — | 8.9 km | — | — |
| Salt end | Burstwick Drain | 12.8 km | — | 2.67 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| Eastfield Road/a180 Cso | Unmd Drain Trib. Riv. Humber | 2.5 km | 21 (2024) | 69 |
| South Killingholme Town Street Cso | Trib Of S.killingholme Haven | 2.8 km | 15 (2024) | 13 |
| Cravens Lane Pumping Station | Western Trib Of Harb'h Msh Drn | 3.2 km | 1 (2024) | 9 |
| Immingham Water Recycling Centre | The River Humber | 3.6 km | 82 (2024) | 368 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
No mapped flood-defence assets within 500 m of the postcode centre. Defences reduce risk, never remove it.
The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.
At-risk postcodes near DN40 2DB — all in the DN40 district.
© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the DN40 district.