With sea levels rising and a loss of intertidal features such as mudflats and salt marshes, new habitats for important coastal wildlife need to be created. On the Isle of Purbeck, over 150 hectares at Arne Moors is being adapted by The Environment Agency, RSPB and Natural England, working together to create a substantial wetland habitat that will also protect property to the East of Poole Harbour from being flooded in the future.
As part of this biodiversity improvement scheme, Suttle Projects were appointed by main contractor Kier, to construct an outfall structure that will play a vitally important role in controlling water levels on the completed scheme. The £784,000 Furzebrook Culvert discharges water from Furzebrook stream into the new intertidal area during periods of low tide via special fish-friendly flap valves, that do not allow the water to travel back through the embankments during higher tides.
Through meticulous up-front attention to detail, understanding the sensitivities of the working environment, and comprehensive temporary works design and installation capability, Suttle Projects simplified the solution to complete Furzebrook Culvert on schedule, despite encountering very challenging and unanticipated ground conditions. This issue could have significantly impacted the programme had it not been for the responsive and creative in-house design solution that meant work could continue uninterrupted.
The protection and care for the biodiverse SSSI habitat was prioritised during each and every construction activity, which was supported by clear communications throughout planning, execution and handover.
Suttle Projects are proud to have played their part in this major project to control water levels and restore and maintain crucial wetland habitats. The scheme will help to transform the existing low-lying grasslands with 4,300 metres of new embankments positioned 500 metres further inland, that will both enhance long term biodiversity and the wellbeing of local communities and visitors.