Restoration work has been undertaken on the River Wylye in Wiltshire (a chalk stream designated as a SSI and SAC) in order to address low flow issues relating to abstraction for public water supply. David was involved in undertaking a geomorphological survey of a number of restoration sites along the river, repeating a previous survey undertaken in 2001. Analysis of the data sets using GIS allowed for the assessment of the success of the schemes with reference to their ability to improve geomorphological diversity.
Arup were appointed to undertake a study to assess a range of options for flood storage and river restoration on the heavily-channelised Ravensbourne River, as part of a wider River Corridor Improvement Plan. David was part of the team involved in the completion of a Flood Risk Management pre-feasibility study including an assessment of the existing flooding mechanisms of the watercourse, identification of the options available to restore the existing channel, and a hydraulic assessment of the options identified.