You Can Slow The Flow: General Principles
General principles of urban SuDS (Sustainable Drainage Systems)
If our valley was Natural
it would maintain a balance of water circulation through the processes of rainfall, evaporation, leaf interception and absorption by plants, surface runoff, and infiltration to free draining ground.
Due to human Development
replacing plants and soils with hard surfaces such as roofs, roads, patios and car parking, rainfall runs off much more quickly, causing surface water and combined sewer flooding, and higher river levels.
Using SuDS to Slow The Flow
in our urban areas, as well as upstream, we can mimic natural water management. Many small changes can have a big combined effect on reducing flood water quantity and quality.
Ways that You Can Slow The Flow
Think about the space available and where rain water goes – where are the puddles? How does water behave in a storm?
Be a Water Hoarder!
Help to prevent combined sewer overflows by altering your actions during flood events to discharge less water into drains (as you might in drought – e.g. shower rather than bath, wait to use the washing machine…)
Yorkshire Water provide tips and free water saving packs.
We hope you are able to be proactive and start right away!
However, you may not have resources to do anything right now. If so, next time you repair or refurbish property, please consider SuDS.
Do It Yourself
DIY is OK if changes are small-scale and simple, but get professional advice if you intend to:
- increase the volume at any outfall point
- work very close to a permanent river or stream (≈10m)
- make change to a listed building or in a conservation are
- create a green roof
- re-use grey water in buildings
- do anything that could affect your neighbours
NB. Remember we have a varied geology, i.e. water runs through sand, but if you are working with clay, it may puddle rather than soak in.
Download the printable 2-page PDF below: