Twineham Weir Removal

Creating fish passage on the River Adur

Originally focused on the removal of two structures, one on the Herrings Stream and one on the main river, it soon became apparent that, in order to maximise the benefits of this project, a third structure also on the Herrings Stream should also be removed at the same time.

Removing all three of these structures would open 4.8km of river which was previously inaccessible to most fish species in most flow conditions. Learning from our experiences on the MORPH project we undertook a large amount of engagement with the landowner and those stakeholder groups who had a vested interest in the area. During this consultation period it became clear that the landowner himself had the experience, staff and machinery to undertake this project himself. We had acquired numerous tenders for the work from framework contractors, all of which were over our available budget and, following conversations between all project partners and the landowner it was agreed that he would undertake this project on our behalf, with the project management being taken over by OART.

Once we were certain that all the health and safety aspects of the work had been covered the work began in August 2014 and was completed, with all three structures removed, by the end of September 2014. The result of this novel approach to undertaking groundworks by contracting the landowner resulted in a cost saving in excess of £160,000 and saw the project completed within the agreed timescale. In addition it is great to be able to allow landowners to work on their own land for the benefit of the local ecology and biodiversity, a real engagement with the natural environment. This is certainly an approach which we would look to use again should the opportunity arise.

Click on the images below to see the results of each weir removal at Twineham.


Twineham Tilting Gate
Twineham Penstock
Rakes Barn


Jims Diary

Country ramblings from OART field officer Jim Smith

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