A Joint operation between councils and the military is hoping to prevent extreme flooding in Surrey.
Surrey and Tandrige are among the councils working with the military and the environment Agency to prevent the flooding of Kenley waterworks. The site, run by Redhill-based Sutton and East Surrey water, supplies 47,000 homes and would have to close if it were to flood.
Temporary dams and reservoirs are being built.
Neighbouring residents and landowners have already been told of the scheme, which will last until a long term solution is found.