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Flood resistant design is typically used when the flood depth which is anticipated is not overly deep typical value which is floated around is 60 centimeters is thought that water that is less than 60 cm deep can be kept out or building using water resistant design or flood resistant design because the pressure of the water acting on the outside of an empty box will not damage the structure so the measures described on this page after that situation for shallow water which is being kept out of a building.
Traditional Footing (left) allow the ingress of water through permeable
concrete blocks and then through the cavity, from below ground level.
Flood design starts from BELOW the ground up.
One
method of resistant design that is quite novel is up and over resistance. In
this system of flood resistant design the occupier enters the living
accommodation by travelling up and over a tanked cell, in which the lower half
of the building will reside.
This tanked construction can keep the occupier safe and dry during a "design" flood event. Extra mitigation can be added via the use of flood doors.
Using this method ramps or steps can be added to allow access. It is important that the tanked cell does not have any leaks. Although any contractor familiar with constructing basements should be able to advise on construction methods.
Technical articles often form the backbone of planning statements or Environmental Impact Assessments (EIA). By using advanced schema, we ensure that specific mitigation measures—ranging from flood resistant design to carbon sequestration—are presented with maximum technical authority.
With over 15 years of industry experience and 900+ projects completed, Southwest Environmental Limited provides the professional accreditation (IES/CIWEM) and technical insight required to meet stringent UK standards. By combining structured data with peer-reviewed methodologies, we help secure the future of your development through robust, evidence-based sustainability strategies.