Exploring the Importance of Dredging: A Visit to the River Parrett and River Tone

Somerset is unique in having the Somerset Rivers Authority (SRA), funded by local residents to enhance flood protection and resilience. Established in 2015 after the severe floods of 2013-14, the SRA has been vital in funding various projects under Somerset’s 20-Year Flood Action Plan, improving the region’s capability to manage flood risks. Somerset Council acts as the Host Authority and Accountable Body for the SRA, providing expertise, administrative, and financial support.

Recently, myself and other members of the SRA Board gathered on a crisp winter day to observe crucial dredging work on the River Parrett downstream of Burrowbridge and the River Tone upstream. This visit highlighted the ongoing maintenance efforts since the Environment Agency initiated the original dredging in 2014, now continued by the Parrett Internal Drainage Board with SRA funding.

The winter dredging began on 6 January 2026, strategically timed with larger tides, and will run from Burrowbridge to Northmoor Pumping Station, expected to take two to three weeks.

During our visit, we learned about the innovative dredging techniques employed. Last year, a specialised craft called the Borr, operated by Van Oord, alongside a floating platform with an excavator from WM Longreach, efficiently redistributed silt into the channel. The Borr’s powerful water jets agitate and disperse the sediment, ensuring effective removal during the outgoing tide.

These dredging efforts are essential for maximising water conveyance during floods and protecting our communities. Witnessing the dedication and care of the teams involved reassured us of their commitment to preserving Somerset’s waterways and enhancing public safety.

As we concluded our visit, it became clear that the ongoing work reflects the importance of proactive flood management and environmental conservation.

Here is a short video clip explaining the dredging process.