Reclaiming ground / piping gripe/shough

Ginger83

We have a gripe/shough running alongside the road but it's about ten feet below road level. I have often thought about having it piped and filled.

Has anyone done this before? Is it possible or unrealistic?

What kind of pipe would be used?

50HX

What's a gripe??

Ginger83

https://www.boards.ie/discussion/comment/120711999#Comment_120711999

It's an open channel that allows water from roads and land to drain away

leoch

A shough

Ginger83

https://www.boards.ie/discussion/comment/120712054#Comment_120712054

I've never heard that term but you probably know what I'm on about.

50HX

What length is it and does it carry much water in winter from what you can see??

Ginger83

https://www.boards.ie/discussion/comment/120712084#Comment_120712084

It's around 30/35 metres. There's a concrete pipe running under the driveway and plenty of water moved through it in winter but our road was redone about two years ago and the water was diverted under the road to the other side before it gets to us.

Rusheseverywhere

Done over longer lengths (but 6 feet down) used a a 2 foot corri and 3 inch stone around. Works fine. Going back would skip the stone too expensive to justify over lengths I did. However, is it beside a public road?? If so and you fill in lads will drive on it and be pressure on the Corri pipe. Then say leave soill around pipe with stone just on top foot.

roosterman71

No problem piping it as long as the water from the road is still able to get away and not flood a) the road or b) the land where it previously wouldn't have flooded.

Put in a big enough pipe and plenty of stone around it. Ya might need to pipe in any runoff drains into the new pipe too

Ginger83

https://www.boards.ie/discussion/comment/120713384#Comment_120713384

https://www.boards.ie/discussion/comment/120713092#Comment_120713092

There is a concrete pipe under the driveway about ten feet below road level. It's probably only a 12 or 18 inch diameter but I know water used to fly through it in winter. There's a lot less going through it since the council diverted under the road to the far side about 200 metres up from us.

Does that corri pipe join on to concrete pipe? What weight is allowed on them?

roosterman71

https://www.boards.ie/discussion/comment/120714966#Comment_120714966

I don't know the specs of those pipes. Ya'd need to at least match the existing pipe in terms of size so as the new pipe isn't or can't become a bottleneck. Ya'd be able to join them together alright.

148multi

Don't forget pipes cause friction to water, which slows it down.

Also the fall in the gripe, because in heavy rain a gripe with a big fall will need to let more water travel through quicker.

If memory serves me right an 18" pipe let's half the water through compared to a 2' pipe.

50HX

Corri won't match to a concrete pipe

I think once they are backfilled correctly the jfc one will carry 40tn

There are other brands as well so you'd need to check...polypipe, cherry pipe etc

Would a perforated 18" pipe do the job once backfilled with stone, you'd be covered from overhead water then as well

Ginger83

https://www.boards.ie/discussion/comment/120716076#Comment_120716076

https://www.boards.ie/discussion/comment/120716078#Comment_120716078

It's just an idea at the minute. I would have to look into it in more detail because I have tarmacadam on my driveway so the concrete pipe under it will have to stay there. The corri pipe sounds ideal if it could be connected somehow. What trade would be best to ask to survey it?

50HX

Measure the diameter of the conc pipe, if its a 12/15 or 18" get a corri pipe collar of the same size & see will it slip over it

Ask any good digger driver they'll guide you

Alternatively if your current pipe is say 12" fit a 15" corri over it and away you go

They are good value up to 12" but above that size the price rockets up

Ginger83

https://www.boards.ie/discussion/comment/120716160#Comment_120716160

I will measure it and see what size it is. I emailed a company in Galway who make them for information.

The bigger sizes are very dear but I'd be worried 12 inch might be too small. I don't want it to back up and pee off the neighbour.

Rusheseverywhere

What 50HX said is spot on. 2 ft very dear but in flash/heavy flooding it is worth it. I used it on main drains I filled in that were robbing me with constant cleaning and marly sides. I would say you would get away with an 18 inch. But depends on how full drain gets. Remember too that surface water will drain alot more quickly into open drain. Worth putting gully and yellow land drainage pipe in at a spot and connect it into the corri

Ginger83

https://www.boards.ie/discussion/comment/120716307#Comment_120716307

I read that the corri pipe comes with a fully perforated option. This would help with water from above.

I might also measure the ones that the council used.

older by the day

https://www.boards.ie/discussion/comment/120716340#Comment_120716340

I have never heard of a gripe. Sometimes down here if you knew some fellow up the line in the council they might chip in a few corri pipes. " If it's for the good of the public road"

Rusheseverywhere

All the Corris I have seen, and used, are the perforated ones. Just go into any Coop or Hardware they will have plenty of them. If you fill in the drain and the pipe is 8 feet down take too long I would say for surface water to get in just depends. You will know the site.

Ginger83

https://www.boards.ie/discussion/comment/120716988#Comment_120716988

I wish I thought of that when the road was being redone

Ginger83

https://www.boards.ie/discussion/comment/120716160#Comment_120716160

https://www.boards.ie/discussion/comment/120717208#Comment_120717208

Good news. There is a coupler available to join corri pipe to concrete pipe

I just need the outside diameter of the concrete pipe

50HX

Good to hear, whatever you can get perforated you can also get in solid form

What rushes said re surface water is correct the more I think of it

Maybe run a 6" perforated/land drainage pipe at the top & into manhole

I'd put in a manhole to have access to free it at a later stage, esp with silt etc build up

Let us know how you get on