Does Rawmarsh flood?
What the Environment Agency's rivers-and-sea flood-risk data says about Rawmarsh
Ordnance Survey places 35 postcodes in Rawmarsh in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 397 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 12 | 128 | 2 |
| Medium | 7 | 75 | 7 |
| Low | 16 | 194 | 60 |
| Very low | 0 | 0 | 0 |
| All bands | 35 | 397 | 69 |
This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.
Rivers and live river levels near Rawmarsh
Environment Agency gauges within 10 km of Rawmarsh watch River Don, Whiston Brook, Ulley Brook, River Rother, Blackburn Brook, Brook Dike, Catcliffe Drain.
-
Rotherham Forge Island
River Don · 2.5 km away 0.34 m
normal range · just past its peak · 24 min ago -
Rotherham
River Don · 3.1 km away 0.18 m
normal range · just past its peak · 24 min ago -
Kilnhurst Lower Structure
River Don · 4.1 km away 0.98 m
controlled by a sluice or weir · 24 min ago -
Whiston Brook
Whiston Brook · 5.2 km away 0.07 m
normal range · 24 min ago -
Canklow Washlands
Ulley Brook · 5.4 km away 0.32 m
normal range · 24 min ago -
Canklow Regulator Structure
River Rother · 5.5 km away 24.19 mAOD
controlled by a sluice or weir · 24 min ago -
Sheffield Wincobank
Blackburn Brook · 5.6 km away 0.22 m
normal range · just past its peak · 24 min ago -
Sheffield Blackburn
Blackburn Brook · 5.7 km away 0.06 m
normal range · falling · 24 min ago -
Wath upon Dearne
Brook Dike · 5.9 km away 0.12 m
normal range · steady · 24 min ago -
Hadfields
River Don · 6.3 km away 0.41 m
normal range · 24 min ago -
Catcliffe
River Rother · 6.9 km away 25.64 mAOD
normal range · rising · 24 min ago -
Catcliffe Drain
Catcliffe Drain · 6.9 km away 25.67 mAOD
normal range · rising · 24 min ago
Distances are from the middle of Rawmarsh's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.
The watercourse nearest Rawmarsh
The nearest watercourse on the river map is Ochre Dike, about 540 m from the middle of Rawmarsh's at-risk postcodes.
- Next gauge downstreamNot known: the river map does not trace this water as far as a gauge or the sea (the map has a gap, the water enters a canal, or the next gauge is more than 100 km away).
- Nearest gauge upstreamNone on the river map within 30 km upstream.
A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Ochre Dike nearest the middle of Rawmarsh's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Flood warning areas near Rawmarsh
41 Environment Agency flood warning areas lie within 10 km of Rawmarsh. The EA has issued 269 flood warnings and alerts for them since 2006, most recently on 31 Aug 2026.
-
Rotherham including properties in Northfield, St Ann's, Parkgate, Retail World Shopping Centre, Waddington Way, Aldwarke, Eastwood Trading Estate and Eastwood Village Primary School
2 warnings and alerts since 2006, latest Feb 2022 0.9 km -
River Don from Kelham Island in Sheffield to Hexthorpe, including Bagley Dike
33 warnings and alerts since 2006, latest Aug 2026 1.0 km -
Rotherham city centre properties at Bridgegate, Frederick Street, Central Road, Gresborough Street and Corporation Street
2 warnings and alerts since 2006, latest Feb 2022 2.4 km -
New York including Lyme Street, Marsh Street, Sheffield Road, Main Street and Canal Association and Lock House
2 warnings and alerts since 2006, latest Feb 2022 3.0 km -
Templeborough including Riverside Way, Sheffield Road and Magna Way. Including Templeborough Steel Works and Magna Business Park
3 warnings and alerts since 2006, latest Feb 2022 3.5 km -
Kilnhurst including Springfield Road, Beighton Road and Wharf Road and including the sports ground
3 warnings and alerts since 2006, latest Oct 2023 3.6 km -
Kilnhurst including Hooton Road, Charles Street, Thomas Street and Hooton Lodge
4 warnings and alerts since 2006, latest Oct 2023 3.7 km -
Blackburn Meadows Sewage Treatment Works and Energy Plant
5 warnings and alerts since 2006, latest Oct 2023 5.1 km -
Whiston Brook through Whiston, from Moorhouse Lane, along High Street to Meadowcroft Close
9 warnings and alerts since 2006, latest Jan 2025 5.3 km -
Whiston Brook at Whiston
42 warnings and alerts since 2006, latest Aug 2026 5.4 km -
Properties at Doncaster Rd, Market St, Ferry Boat Lane, Station Rd, Wath Rd, Rowms Lane, Swinton Meadows Industrial Estate, New Station Rd, Coronation Rd
2 warnings and alerts since 2006, latest Feb 2022 5.7 km -
Sheffield from Butterthwaite Lane, Ecclesfield to Meadowhall Interchange. Including Deep Lane, Ecclesfield Road, Grange Mill Lane, Blackburn Road, Fife Street, Meadowhall Road and Alsing Road
5 warnings and alerts since 2006, latest Oct 2023 5.8 km
Recorded floods near Rawmarsh
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Rawmarsh, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →
- 18 Oct 2023 — October 2023 - Storm Babet - Recorded Flood Outline
- 20 Feb 2022 — 2022 February Flood Incident -Storm Dudley, Eunice and Franklin Main river
- 18 Jan 2021 — 2021 January Flood Incident - Storm Christoph Main river
- 15 Feb 2020 — 2020 February Flood Incident - Storm Dennis Drainage
- 8 Feb 2020 — 2020 February Flood Incident - Storm Ciara Main river
- 7 Nov 2019 — 2019 November Flood Incident Main river
- 26 Jul 2007 — 123 June 2007 Main river
- 26 Jun 2007 — June 2007 Main river
- 25 Jun 2007 — June 2007 Flood Event (Ridings Area)
- 15 Jun 2007 — 2007 Whiston Brook - Whiston Main river
- 15 Jun 2007 — June 2007 Surface Water Flooding Yorkshire Other
- 15 Jun 2007 — 2007 River Don Valley Development to Rawmarsh Main river
…and 7 earlier recorded floods on the map.
Rainfall near Rawmarsh
Rawmarsh gets about 652 mm of rain a year on average (wettest month July, 63 mm; driest March, 44 mm). That is 44% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.5 km from the place centre.
The nearest rain gauge, Rainfall station (7.1 km away), recorded 3.2 mm in the last 24 hours and 41.1 mm in the last 7 days (latest reading 24 min ago).
At-risk postcodes in Rawmarsh
Every postcode Ordnance Survey places in Rawmarsh that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.
High likelihood (12)
Medium likelihood (7)
Low likelihood (16)
Postcode districts
Sources
FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.
Flood-risk bands: © 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.
Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.
River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).
Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
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.