Climate change at Acorn Bank
Downstream of the watermill, the bankside of the historic Crowdundle Beck is being eroded by the river. It’s a stark reminder of the impacts of climate change and changing weather patterns. This rapid erosion is putting the stability of the driveway at risk, and as a result we need to move the driveway.
Weathering the storms
Last winter was particularly wet and stormy, with six named storms across December and January. This has naturally taken a toll on Crowdundle Beck, which has been eroding the riverbank and impacting the root systems of nearby trees.
Coupled with the frequency of storm events, the erosion of the riverbank could cut off access to Acorn Bank, closing the property to staff, visitors and emergency services. Without the right intervention, erosion of riverbank will impact the drive downstream, threatening the safety of the driveway near Acorn Bank’s main gates and access to the mill.
But it’s not all bad news. We’ve been working with the Riverlands team, the Environment Agency, the Eden Rivers Trust and engineering experts to assess and review options for the future. These specialist consultants and partners bring together vast expertise in rivers, ecology and civil engineering.
Tree felling on the driveway
Last year, three oak trees were felled to help mitigate this erosion. However, the river is still rapidly eroding the bank closest to the driveway, and this sped up in the following months.
In February 2024, we took the difficult decision to fell another tree. If left, it may fall, causing a great deal of damage, which could also accelerate the erosion of the riverbank further. We will be planting further trees to replace these ones, on another part of the estate.
Rerouting the driveway
Working with partners and contractors, we’ve been looking at options for the future, balancing nature and heritage. These discussions have led to the decision to move the driveway, and create a diversion. We’re confident that this is the best option for nature, heritage, and visitors. The plan will secure access for all to Acorn Bank, keeping this special place open to members and visitors, and enabling us to keep caring for it.
Importantly, this plan will help us adapt to the consequences of climate change, making Acorn Bank more resilient to changing weather patterns and future storm events. Letting the river take its natural course will enable us to keep looking after our buildings and tenants. If you'd like to support this project acornbank@nationaltrust.org.uk.