Your County - Putting Kent First

Kent 4 star Council

Drainage

How does water drain away from roads and pavements?


Water drains from roads into gratings at the sides of roads. Gratings are placed over collecting pots called gullies. In towns and some larger villages, gullies are often connected to sewers. If not, the water flows to soakaways (large underground chambers where water collects and gradually soaks out through holes into the surrounding ground), streams or roadside ditches. On the coast the water may flow out to the beach.

How do gullies work?

Water from the road drains into the gulley pots. The silt or dirt settles in the bottom of the gulley, and the water drains through an outlet pipe in the side of the gulley. We clean out the silt to prevent it from blocking the outlet pipe.

How often do you clean the gullies?


We clean gullies more often in areas where heavy rain may cause flooding, or where a lot of debris washes into the gulley pots. We aim to clean all gullies at least once every two years, but there are many gullies throughout Kent that we clean more often. This makes sure all drainage systems are working properly. We can clean out gullies individually if they are blocked.

How can I find out how often you clean the gullies in my road?

Please contact us.

I have noticed that there is water in the gulley pots all the time - does this mean they are blocked?
It is normal to see water in gulley pots. They have a water trap (like domestic sinks or toilets) to prevent smells from coming back up from sewers or drains.

Who should I contact if I see a blocked gulley?


Let us know and we will make sure we put the gulley on our cleaning plan. If the gulley is not working because litter is covering the gratings, you should contact your local district or borough council.

Who cleans soakaways and sewers?


Their owners clean these. We are responsible for soakaways and drains that carry water from the road. The sewerage authority for the area is responsible for the main sewers.

I've often noticed ditches along the sides of roads. What are they for?


Ditches are usually part of the land drainage system for an area. Most were dug centuries ago to drain marshy land which then became land for farming and roads. Some ditches have been dug to drain the road, and some old ones may have been moved so that they run at the side of a road.

Who is responsible for keeping them clean?


The person who owns the land at the side of the road is responsible for keeping ditches free of silt and overgrowth.

So you don't keep the ditches clean?


We do not have a duty to keep ditches clean, even where road water drains into them, but we can voluntarily clean them out. However, this is always the landowner's responsibility.
If we own the land next to the ditch, we must keep the ditch clean.

Who should I contact if I see a blocked ditch?


Contact us if the blockage is causing flooding on the road. If the blockage is causing problems on other land, phone the Environment Agency's Incident Line on 0800 807060.

Who should I contact about litter or rubbish that has been dumped illegally?


Contact your local district or borough council, as they are responsible for keeping public areas

Who should I contact if I think there is pollution?


Report pollution (such as sewage, diesel, chemicals and so on) immediately to the Environment Agency on 08708 506506 or visit their website at www.environment-agency.gov.uk.

I am responsible for looking after a roadside ditch. Can I prevent you from draining the road to my ditch?


We have legal powers which allow us to drain water from the roads to ditches.

I don't want to have a ditch next to my property - can I fill it in?


Sometimes the Environment Agency will allow you to put a pipe into a ditch, but it is unlikely they will allow you to fill in the ditch.

Where can I find more information about highway drainage and roadside ditches?


Contact us for information about the highway drainage system in your road or if you have a question about highway drainage going into a ditch.

For all other questions, phone the Environment Agency on 08708 506506 or visit their website at www.environment-agency.gov.uk.

Report a problem

If you notice a problem with drainage or with flooding on a road or pavement, use our online fault reporting form (link opens in a new window). You will require an e-mail address to complete an online report; if you do not have an e-mail address please call 08458 247 800.

Copyright Kent County Council 2008