Waterlogged Garage after heavy Rain ..caused by open. ended drainage pipes under the soil

sujsuj

Had heavy rain around my area, after the rain noticed water all over the front gravel and even inside Garage. Started investigating why was the flooding.. I used drainage rods in the  drainage pipes  to see any blockers. Curious thing found is all drainage pipes ends the garden, no tank or storage  just open ended pipe under the soil..!! 

Is this normal..? I was expecting drainage pipes finally ending up in some sort of water storage system..

What solution I need to implement  to avoid flodding in the future..?

ThisIsWeird

How old is the house and garage?

Yes, unless they can be fed into a suitable watercourse - a ditch or culvert, for example - they should terminate in a soakaway. Are you certain it doesn't empty into one - it might just be filled with large rubble?

FreeBear

If you are talking about drains for downpipes & surface water rather than the drain from your toilet - Yes, it is quite common for the drainage pipes to stop half way down your garden. There should be a pit, often filled with random lumps of rubble & stone, to hold the water until it has a chance to filter away through the surrounding soil. These soakaways have a limited lifespan of 10-15 years before they get clogged up with soil & muck.

Digging them out and putting storm crates in will give them a new lease of life. Done properly, storm crates should last 50+ years.

edit to add - Have a brick lined chamber some 400mm diameter & 2m deep that was constructed back in 1928(ish) for one of my downpipes to drain in to. Still as good as the day it was put in.

NorfolkCanary

Assuming urban areas, modern houses or those having undergone refurb should typically include a soakaway including drainage crates, perforated pipes etc... 

Older (like my parents) didn't, usually a downpipe that disppears into the ground and hopefully an elbow and pipe that was buried in the garden at a distance from the foundations to allow natural percolation back to the water table; either through soil or gravel or rubble layer

ThisIsWeird

Have you SEEN the rainfall recently! 

Section62

ThisIsWeird said:

Have you SEEN the rainfall recently! 

And the signs were that sujsuj's garage was one of the least well able to cope with excessive rainfall...

sujsuj said:

Curious thing found is all drainage pipes ends the garden, no tank or storage  just open ended pipe under the soil..!! 

Is this normal..? I was expecting drainage pipes finally ending up in some sort of water storage system..

How many pipes are there? Could you do a sketch showing the layout of them?  It wouldn't suprise me if the pipes had been put in to drain the surrounding ground (with the flow going towards the garage) rather than to take water from the garage to soak into the ground.

From what we've seen before your garage needs a proper drainage system put in around it, with the water piped away some distance (and to a significantly lower point).  Maybe have a nice ornamental pond dug?

stuart45

If the ground is heavy clay with a high water table a soakaway will struggle to work properly all year round.

sujsuj

ThisIsWeird said:

How old is the house and garage?

Yes, unless they can be fed into a suitable watercourse - a ditch or culvert, for example - they should terminate in a soakaway. Are you certain it doesn't empty into one - it might just be filled with large rubble?

Thanks, House is 90 years old in a rural area without connected to public sewage system.
I couldn't find any termination soakaway...since its under ground gravel over a period of time it might have lost its capacity as water is getting to garage as well now. See pics showing overall area. Thanks

sujsuj

FreeBear said:

If you are talking about drains for downpipes & surface water rather than the drain from your toilet - Yes, it is quite common for the drainage pipes to stop half way down your garden. There should be a pit, often filled with random lumps of rubble & stone, to hold the water until it has a chance to filter away through the surrounding soil. These soakaways have a limited lifespan of 10-15 years before they get clogged up with soil & muck.

Digging them out and putting storm crates in will give them a new lease of life. Done properly, storm crates should last 50+ years.

edit to add - Have a brick lined chamber some 400mm diameter & 2m deep that was constructed back in 1928(ish) for one of my downpipes to drain in to. Still as good as the day it was put in.

Yes talking about drains for down pipes & surface water not toilet. your comments make much sense as this soakaway mechanism might have created many years ago and lost it shape and purpose now.

I am thinking about brick lined chamber as well. But not sure it might need any council approval..?

sujsuj

NorfolkCanary said:

Assuming urban areas, modern houses or those having undergone refurb should typically include a soakaway including drainage crates, perforated pipes etc... 

Older (like my parents) didn't, usually a downpipe that disppears into the ground and hopefully an elbow and pipe that was buried in the garden at a distance from the foundations to allow natural percolation back to the water table; either through soil or gravel or rubble layer

Its very rural area without any gas connection or public sewage system. ~80/90 years old house 

sujsuj

stuart45 said:

If the ground is heavy clay with a high water table a soakaway will struggle to work properly all year round.

Normal rains it handles well, but in last 1 month 2-3 heavy rains caused severe issues.