Resilience measures

Name Definition
Gutter A gutter is a non-permeable open drain to collect transport rainwater. Usually a gutter runs along a road. It is connected to either a manhole or a surface water body (Huizinga R.P., 2015, p. 60). A gutter alleviates water buildup on a street, allowing pedestrians to pass without walking through ...
Flexible water level management Flexible water level management involves anticipating precipitation that has been forecast. The water level is lowered before a shower is expected, to create additional water storage capacity. By using flexible natural fluctuations in the water level, improvements can be achieved in rainfall runoff characteristics. In wet periods water levels are ...
Rainwater disconnection Rainwater disconnection, i.e. the separation of the sewage system from the rainwater discharge system, is also a solution to prevent sewer flooding. In particular, the two systems can be dimensioned to fit their respective nominal discharges. Rainwater disconnection is a frequent strategy in Water Sensitive Urban Design (WSUD), and also ...
Dredging of watercourse The term dredging is used to refer to the systematic removal of accumulated material from river or other watercourse channels. In its most extreme form dredging may be used to re-align river channels creating linear, canalised watercourses. While implementing such a measure the cross section of channels and waterways is ...
Stormwater harvesting system Stormwater harvesting (SWH) consists in collecting, storing and reusing stormwater collected from drains or creeks, on the contrary to rainwater harvesting (RWH), where rainwater is directly collected from roofs. SWH is particularly common in Australia and New Zealand, while almost unknown in many other countries where RWH is preferred. (Staub ...
Flood control dam A flood control dam is a dam built to catch surface runoff and stream water flow in order to regulate the water flow in areas below the dam. Flood control dams are commonly used to reduce the damage caused by flooding or to manage the flow rate through a channel. ...
Stormwater retention tank Stormwater tanks are an effective way of reducing peak flow and equalising flow rates from storm water runoffs in the sewer system. Placed strategically, stormwater tanks mean better utilisation of the existing sewer system, allow for intelligent management of storm water flows, and ultimately save on infrastructure investments. Stormwater tanks ...
Conventional urban drainage systems The purpose of urban drainage systems (a.k.a. collection systems) is to enable safe and reliable disposal of stormwater runoff (i.e., they are at the first place used for pluvial flood protection) and removal of wastewater from urban areas. These systems can be either combined, separate or hybrid. They can be ...
Toroba Toroba is a homemade diversion structure that is used to divert flood water for water supply augmentation. It is built of wooden poles, taken from trees such as the curari and cuji in Venezuela, vegetation residues, and logs. The wooden poles are 50 and 130 cm in length and are ...
Rainwater storage beneath sports fields One option for creating additional water storage facilities is storing in underground crates. This is a hidden technology that fits the criteria of sustainable urban planning. An interesting form of multiple uses of single spaces is realising water storage beneath sports fields. The technical aspects are simple to achieve using ...
Raised kerb Kerb or curb is the edge of the pavement at the side of the road. Water can be channeled along streets with raised kerbs and also to limit contact with buildings. For instance, this could reduce the probability for flood water to enter buildings. This way more water can be ...
Swale A swale is a low tract of land, especially one that is moist or marshy. The term can refer to a natural landscape feature or a human-created one. Artificial swales are often designed to collect water runoff, and increase rainwater infiltration, therefore reduce runoff. They can be covered by grass ...
Maintenance of hydraulic structures of the storm drainage system Set up regulations on maintenance of the hydraulic structures and drainage network infrastructures so that their maximum conveyance capacity will be unlimited. Regular maintenance of hydraulic structures, is another crucial part of flood control. (Wikipedia, Flood control, accessed on Sept. 2016)
Filled container These are cellular barriers filled with aggregates or water to form a barrier against floodwater. Containers can be divided into two categories, permeable and impermeable. In both cases, they serve as gravity dams, using the weight of the aggregate or water for stability. These containers are another example of temporary ...
Filter drain A filter drain is a gravel filled trench, generally with a perforated pipe at the base. Runoff flows slowly through the granular material, trapping sediments and providing attenuation. Flow is then directed to a perforated pipe, which conveys run-off either back into the sewerage network or into a waterbody. Filter ...
Filter trench Filter trenches are shallow excavations filled with rubble or stone that create temporary subsurface storage of stormwater runoff. These trenches can be used to filter and convey stormwater to downstream SuDS components. Its performance in peak flow reduction is medium and in volume reduction low. (Susdrain, Filter trench, accessed on ...
Cascading flood compartment system The “system of cascading flood compartments” combines area prevention with constructional solutions. The idea is to (re)build a second dikeline of polders behind the primary dike, thereby creating a system of different compartments. Polders are low lying areas enclosed by embankments or dikes. In the case of a dike overflowing, ...
Water square The water square combines water storage with the improvement of the quality of urban public space. It makes money invested in water storage facilities visible and enjoyable. When heavy rains occur, rainwater that is collected from the neighbourhood will flow visibly and audibly into the water square. Short cloudbursts will ...
Green wall A green wall is a wall partially or completely covered with vegetation that includes a growing medium, such as soil. Most green walls also feature an integrated water delivery system. Green walls are also known as living walls or vertical gardens. The wall helps reduce run-off by capturing rainwater from ...
Rainwater harvesting system The term rainwater harvesting refers to reuse of stored water, including water purification, and can form part of a sustainable drainage system. Although its main purpose is the increase of water supply in areas of water scarcity where the conventional water supply has failed to meet the demand of the ...