Flood Alleviation Scheme - Durngate Terrace and the Trinity Centre

Durngate FAS Phase 2 Works

The second phase of the North Winchester Flood Alleviation Scheme will be undertaken around Durngate Bridge, the Trinity Centre and Durngate Terrace.  This is a jointly funded scheme between Winchester City Council and the Environment Agency.  

For more information or queries please email floodschemes@winchester.gov.uk


Flood Alleviation Scheme - Durngate Terrace and the Trinity Centre details

Cabinet Member

Cllr Jackie Porter

Start Date


Expected End Date


Key Steps/Milestones

The first phase for the flood alleviation scheme for Park Avenue/St Bedes is now complete.  We are now looking to undertake the Phase II flood alleviation works around Durngate Bridge, the Trinity Centre and Durngate Terrace to complete the flood defences across the North of Winchester.

Latest Status

Site investigations, ecological surveys and an Environmental Impact Assessment have been completed, detailed flood modelling, design and planning permission is currently underway. Due to poor ground conditions found during the site investigations an extra £500k of developer CIL contributions has been allocated to the project.

A planning application for the phase II flood alleviation works was submitted to Hampshire County Council and the South Downs Nation Park Planning Authority in April 2019.  View the applications here: 




Phase II of the Winchester Flood Alleviation Scheme will begin in June 2020 and will involve various flood defences being built along the River Itchen near the Trinity Centre, including three sluice gates. These works will help the Council control and maximise the flow of water safely through the city, and as a result will help protect multiple residential and commercial properties throughout the city centre.   




  • A public consultation for the Durngate FAS took place Tuesday 19 and Wednesday 20 March in the Courtyard, Guildhall Winchester in conjunction with Hampshire County Council and the Environment Agency.

View the consultation information panels here (pdf, 3.5mb)

Next Steps

  • Construcion works for Phase II will commence in June 2020.
  • Durngate car park will be closed during the duration of these works to enable two of the three gates to be installed, but also to act as a site compound for the contractors working on site.
  • The initial first stage of the works will include the removal of Japanese Knotweed.

Further Information

  • The construction works will be carried out fully in line with government guidelines on COVID-19. This means that there will be social distancing in place, and high levels of hygiene practices in place to safeguard people working on the site and passers-by. All efforts are being made to minimise disruption for local businesses, and residents. Careful planning is taking place to protect wildlife in this sensitive and special area.
  • Correspondence detailing these works have been sent out to local businesses, and residents.  However if you do have any questions or comments, then please email them to floodschemes@winchester.gov.uk