This week I was reminded of this topic when I was in Nottingham.
Large buildings, such as churches have had to deal with this topic.
Rainwater overflow when there are “flash floods” can be considerable.
Here are some measures that have been used to address this problem.
Increase main drainage channels.
Put in smaller areas for drainage.
These will add to the overall drainage capacity.
Provide “soakaways” on perimeters of buildings and landscape.
Create areas of permeability with gravel and pebbles.
Planting areas will also take up rainwater.
It is good to remember that Natural Planting will also help.
It has now become important that major buildings have a “Water management” strategy.
This is the way forward in dealing with this major concern in dealing with water.