Plugging up a hole (tunnel) under a driveway?

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How can I plug up a hole that goes the entire width of my driveway and allows water/moisture to move across (beneath) the driveway?

So a few months ago I did some digging work in the front yard found an old beat up PVC pipe that ran below the driveway. The pipe was as long as the width of the driveway and was connected to nothing on either end. The pipe "connected" a flower bed area with the home (blocks) on one side, and sidewalk/driveway on the three others to the rest of the front yard. I pulled the pipe out and that was the end of that.
Several months later we began to notice some of the soil in the flower bed remaining dark on the side closest to the driveway. We monitored and it continued to remain dark despite no rainfall. After a while the darkness and moisture began to expand away from the driveway. The only moisture we had been having was the morning dew (and plenty of it being in Florida).
At that point, I hadn't connected the previously removed tubing to the situation. I was thinking it was some sort of plumbing leak, but that was ruled out from multiple fronts.
Later, it rained, and the flower bed area was a swimming pool. That was unusual because we have gutters and very minimal rain falls in that area.
Again, it rained and the entire area was soaked. I decided to get to the bottom of it and start digging around. I pumped out as much water as I could with my cheapo harbor freight fluid transfer pump and then started digging close to the driveway. What I discovered was that where the PVC tubing was removed remains a relatively open channel creating a water tunnel under the driveway. Daily, dew and moisture drain down the gutter and onto the side of the house and accumulates in the soil and that water channels under my driveway and pools in the flowerbed.

So what would be the best way of plugging this up? Should I just throw a bit of quickrete under the driveway as far as I can reach to try filling up the hole?
 
This sounds like natural drainage. It could be a good chance to insert a pipe underneath the driveway without having to dig.
 
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If you plug the hole, the water might go somewhere where it is not wanted.

Fill the hole with gravel for backing, and then put some concrete in there.

Ideally you would be routing that water to a weeping bed.
 
Yeah, I think you removed the below grade drainage.
Is this an asphalt driveway? If so, it will probably start to subside over time....

Figure out a way to get that thing back in there. You'll be happy you did in the long run!!!
cheers3.gif
 
When I find something like this, my first thought is "a wizard did it".

Someone did that thing to solve a problem.

Put it back!
 
FWIW, when I ran a 3/4" pvc underneath my driveway in my old house I used couplers and adapters to connect one side to a water hose, turned on the water, and with all my strength pushed the pipe through the dirt, hydraulically drilling. It worked very well. Make sure to fit a 1/4 turn shutoff where the hose connects to the pipe, as you'll need it.
After the pipe was drilled I cut off the fittings and used it as a water supply pipe.
 
"I found a pipe"

"I removed it"

"Now I have a water problem"

So...

Put the pipe back. It was there for a reason!
 
Pardon the ignorance but I don't see how the piping would serve any sort of function and I've never found any otherpipes anywhere else around the house the perimeter of the house to indicate it was part of an intended system, only right underneath the driveway.
I also fail to see how the pipe being there would aid in anything as it was itself plugged up with compacted dirt.
Lastly, it seems that the flower bed area that gets flooded is at a lower level than the ground on the other side of the driveway from where the water comes. With the newly existing open channel under the driveway water would still flow in that direction due to gravity. Adding a pipe back under there would still mean there is a (smaller) channel through which water can flow with gravity.
Not trying to go against the grain, I'm not the most edumacated in these things, but from what I see in person I don't see how it would work.
 
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That was my initial thought as well that it was the remnant of some previous project that never got finished.
I'm at work now and don't have the pipe in front of me, may have disposed of it anyway. I believe it was between 1/4 and 1/2 inch ID at most.
I don't think the problem is so much of the pipe being there or not but now there is an open cavity that allows water to flow from higher to lower ground.
 
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Originally Posted by Walmill
That was my initial thought as well that it was the remnant of some previous project that never got finished.
I'm at work now and don't have the pipe in front of me, may have disposed of it anyway. I believe it was between 1/4 and 1/2 inch ID at most.
I don't think the problem is so much of the pipe being there or not but now there is an open cavity that allows water to flow from higher to lower ground.




My guess is that it was there to run a wire or cable through. It might even be left over from the driveway project itself as they use pvc pipe to check the height of the surface. Usually it's pulled out near the end.

The easiest way is to provide a channel somewhere for the water to flow.
 
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