Project Overview

The Upper Don Flood Alleviation Scheme in Sheffield was undertaken on behalf of Sheffield City Council. The project mitigated flooding in the Hillsborough, Malin Bridge, and Owlerton areas, with a valuation of approximately £10 million. The works involved the construction of 1.5 km of new concrete retaining walls, reinforcing existing structures, raising the ground, and building embankments.

Environmental considerations were paramount; collaboration with organisations such as the Environment Agency ensured the protection of local wildlife, including fish recovery, bat relocation, and the treatment for invasive species like Japanese Knotweed.

To bolster sustainable development, a hybrid power solution combining a generator and a lithium-ion battery reduced carbon emissions by 4.8 tonnes and improved noise levels. Challenges included minimising disruption to neighbouring land and businesses, which were addressed using vibration-free piling methods. Overall, the project effectively balanced flood protection with ecological preservation.