Environment Agency061WAF23CalcLechThames
River Thames and its small tributaries from Calcutt to Lechlade: flood history since 2011
The Environment Agency has issued 51 flood alerts for River Thames and its small tributaries from Calcutt to Lechlade since 13 Jan 2011, most often in January; the busiest year was 2023 (6).
Flood alerts only
The flood area
- Flood area
- River Thames and its small tributaries from Calcutt to Lechlade
- Code
- 061WAF23CalcLech
- Environment Agency area
- Thames
- County
- Gloucestershire, Oxfordshire, Swindon, Wiltshire
- River or sea
- River Thames, Blunsdon Brook, Water Eaton Brook, Marston Meysey Brook, Share Ditch, Bydemill Brook, Westrop Brook, Downington Brook
- First in the history
- 13 Jan 2011
- Latest in the history file
- 16 Jan 2026
- Current status
- check-for-flooding.service.gov.uk (the Environment Agency's live page)
Flood alert, flood warning, severe flood warning: what each means
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.
How many alerts and warnings a year?
Flood alerts, flood warnings and severe flood warnings (updates not counted), by year. 2026 runs to the end of June.
The numbers
| Year | Alerts | Warnings | Severe |
|---|---|---|---|
| 2026 | 1 | 0 | 0 |
| 2025 | 5 | 0 | 0 |
| 2024 | 6 | 0 | 0 |
| 2023 | 6 | 0 | 0 |
| 2022 | 2 | 0 | 0 |
| 2021 | 2 | 0 | 0 |
| 2020 | 4 | 0 | 0 |
| 2019 | 4 | 0 | 0 |
| 2018 | 3 | 0 | 0 |
| 2017 | 1 | 0 | 0 |
| 2016 | 5 | 0 | 0 |
| 2015 | 2 | 0 | 0 |
| 2013 | 3 | 0 | 0 |
| 2012 | 5 | 0 | 0 |
| 2011 | 2 | 0 | 0 |
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.
When in the year?
All alerts and warnings since 2011 by month.
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.
Before July 2026: the latest in the history file
| Date | Level |
|---|---|
| 16 Jan 2026 | Flood alert |
| 2 Dec 2025 | Flood alert |
| 15 Nov 2025 | Flood alert |
| 24 Feb 2025 | Flood alert |
| 27 Jan 2025 | Flood alert |
| 6 Jan 2025 | Flood alert |
| 24 Nov 2024 | Flood alert |
| 9 Oct 2024 | Flood alert |
| 24 Sep 2024 | Flood alert |
| 28 Mar 2024 | Flood alert |
| 7 Feb 2024 | Flood alert |
| 22 Jan 2024 | Flood alert |
Source: Environment Agency, Historic Flood Warnings (England); Environment Agency flood-monitoring API. Contains public sector information licensed under the Open Government Licence v3.0.