Flood alleviation schemes and investigations
Flood alleviation projects
Hampshire County Council is working with partners to undertake flood alleviation projects throughout Hampshire.
- A32 Farringdon flood alleviation scheme – Completed 2025
- Outer Winchester flood alleviation scheme – Completed 2025
- Rectory Road and Sycamore Road flood alleviation scheme – Completed 2023
- Romsey flood alleviation scheme – Completed 2023
- Buckskin flood alleviation scheme – Completed 2020
Flood investigations
Under Section 19 of the Flood & Water Management Act, when flooding reaches a defined trigger level a formal investigation is undertaken and will be published on this page.
This is "significant flooding" which is defined as:
- flooding that affects 20 or more properties internally in one flood event within the same location
- flooding that affects significant lengths of public highways and lasts for a period of 3 hours or more from the onset of flooding
These areas can also be viewed on our Flood and Water Management App.
Winchester and Hook flood investigation 2024
- Location:
- Central Winchester and Hook areas
- Date of flooding:
- August 2024
- Status:
- In progress
- Related published documentation:
- n/a
Coastal flooding 2024
- Location:
- New Forest, to Hayling Island
- Date of flooding:
- April 2024
- Status:
- Published
- Related published documentation:
- New Forest to Hayling Island Flood Investigation report April 2024
Winchester and Eastleigh areas flood investigation (July 2021)
- Location:
- Bishops Waltham, Botley, Durley, Fair Oak and Hedge End
- Date of flooding:
- July 2021
- Status:
- Published
- Related published documentation:
- Winchester & Eastleigh areas flood investigation (July 2021)
Winchester flood investigation 2020
- Location:
- Winchester area
- Date of flooding:
- 27 August 2020
- Status:
- Published
- Related published documentation:
- Winchester Flood Investigation (August 2020)
Fleet flood investigation 2015
- Location:
- Fleet area
- Date of flooding:
- August 2015
- Status:
- Published
- Related published documentation:
- Fleet Section 19 Report March 2018
Wickham flood investigation (June 2015)
- Location:
- Wickham
- Date of flooding:
- June 2015
- Status:
- Published
- Related published documentation:
- Wickham Flood Investigation Report (June 2015)
Romsey flood investigation 2014
- Location:
- Romsey area
- Date of flooding:
- December 2013 to January 2014
- Status:
- Published
- Related published documentation:
-
Phase one
- Phase One Executive Summary
- Phase One Appendix A
- Phase One Appendix B
- Phase One Appendix C
- Phase One Appendix D
- Phase One final report
Phase two
Buckskin flood investigation 2014
- Location:
- Buckskin
- Date of flooding:
- February to March 2014
- Status:
- Complete
- Related published documentation:
-
- Executive summary
- Full report 1a (includes appendices, but maps missing in appendices A, D, E, and F)
- Complete appendices to full report August 2014
Thornford Road Ford (September 2012)
- Location:
- Headley
- Date of flooding:
- September 2012
- Status:
- Published
- Related published documentation:
- Thornford Road Ford (September 2012)