Flood management measures

Filter strip

Filter strips are gently sloping, vegetated strips of land that provide opportunities for slow conveyance and infiltration (where appropriate). The...

Filter trench

Filter trenches are shallow excavations filled with rubble or stone that create temporary subsurface storage of stormwater runoff. These trenches c...

Green roof

Green roof belongs in the category of SUstainable Drainage Systems (SUDS) and aims at source controlling. A green roof or living roof is a roof of ...

Green wall

London's largest living wall will "combat flooding"

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 ...

Increase of infiltration capacity

Methods to increase infiltration capacity

Improving the soil infiltration capacity means improving the permeability of the soil. If the infiltration capacity of the soil is increased, more ...

Land claim

The main objective of land claim is neither erosion nor storm reduction. The aim of land claim is instead, to create new land from areas that were ...

Multi-layer safety as a central concept for flood protection

Multi-layer safety, prevention, sustainable spatial planning and disaster management © Beleidsnota Waterveiligheid 2009-2015

The central concept for the revised water safety policy is formed by 'multi-layer safety'. In this concept safety is assured through multiple layer...

Rain garden

A rain garden is a planted depression or a hole that allows rainwater runoff from impervious urban areas, like roofs, driveways, walkways, parking ...

Flood management measures

Name	Definition	Co-benefits and impacts	Conditions
Filter strip	Filter strips are gently sloping, vegetated strips of land that provide opportunities for slow conveyance and infiltration (where appropriate). They ...	They treat runoff by vegetative filtering, and promote settlement of particulate pollutants and infiltration. Other advantages are that filter strips ...	Filter strips are not suitable for steep sites or for draining hotspot runoff or for locations where risk of groundwater ...
Filter trench	Filter trenches are shallow excavations filled with rubble or stone that create temporary subsurface storage of stormwater runoff. These trenches ...	Water quality treatment is one of filter trench's main advantages. Amenity and ecology potential are additional ones but lower in ...
Green roof	Green roof belongs in the category of SUstainable Drainage Systems (SUDS) and aims at source controlling. A green roof or ...	Additional benefits gained by the use of green roof are the increase of roof lifespan, the reduction of energy use, ...
Green wall	A green wall is a wall partially or completely covered with vegetation that includes a growing medium, such as soil. ...	The stored water can be utilised for plant nourishment. It is also expected to improve air quality in the area ...
Increase of infiltration capacity	Improving the soil infiltration capacity means improving the permeability of the soil. If the infiltration capacity of the soil is ...	In most areas where water shortages occur, maximizing the infiltration of rainfall into soil is indispensable to achieving food and ...
Land claim	The main objective of land claim is neither erosion nor storm reduction. The aim of land claim is instead, to ...	The key advantage of land claim is the gain of additional coastal land for uses such as agriculture or development. ...
Multi-layer safety as a central concept for flood protection	The central concept for the revised water safety policy is formed by 'multi-layer safety'. In this concept safety is assured ...	-
Rain garden	A rain garden is a planted depression or a hole that allows rainwater runoff from impervious urban areas, like roofs, ...	Another purpose of a rain garden is to improve water quality in nearby bodies of water. Rain gardens can cut ...	Rain gardens should be designed for specific soils and climates. Native and adapted plants are recommended for rain gardens because ...