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Old 05-31-2018, 09:33 AM   #16
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Re: Stopping water flooding garage


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Originally Posted by Bondo View Post
Ayuh,..... That's a 'ell of a hill, 'n a really poorly graded driveway droppin' into it,....
Funny lookin' for concrete,...

The trench drain in yer link will be overwhelmed, 'n fulla dirt in no time,....

Which way is "Downhill" at the garage, the right side in yer picture,..??

The side-pitch of the driveway should pitch to the right, dumpin' the bulk of the water 'bout under the pallet,....


Forget the buried pipe, 'n dig a swale where the pipe is, to daylight,.....

Yes, not the best design for a garage! Who would've thunk that all that water would want to run down hill?!

Well the front of the garage is level and then about 8-10' to the right side of the garage in the picture is a hill that goes down. Also a hill just behind the garage that goes down.

French drain is in front of the wall on theright side of the picture and then runs out the hill to the right.

For a swale, do you mean made out of concrete? Kinda like you see in neighborhoods on the side of the road? Just a little trench that runs to the side of the garage? Maybe if it had a bit of a lip on the front at least some of the dirt would get stopped. We are used to shoveling our driveway every few weeks to move the dirt. Most people only get to shovel their drivers in winter!

Thanks again for all the help!
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Old 05-31-2018, 09:34 AM   #17
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Re: Stopping water flooding garage


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Originally Posted by stadry View Post
may need 2 swales - 1 to the right & other to the left,,, difficult to 'see' the fall of the land


To the left is sight hill up to our house and back yard. To the right is a hill that falls about 6' down leading to neighbor's property. Also a hill behind the garage if I need to route water back there. Would the Swale also go across the driveway? Thanks!
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Old 05-31-2018, 09:37 AM   #18
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Re: Stopping water flooding garage


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Originally Posted by Nealtw View Post
I bought a house with the same problem. While cleaning up junk left in the back yard I found a piece of 7" green pvc sewer pipe with a five inch strip cut out of one side. Not sure what some one had in mind. I cut asphalt 12" wide inch wide out of the driveway just in front of garage, dug that down so it could take 12x12 pavers and be 1" lower than the garage deck, then I dug a trench for the modified pipe to fit in. Dropped in 2 pieces of 4" abs where the tires would cross and concrete that area full. Laid the pavers with space between and ran the drain around the garage down the hill. It is still working fine since about 1990


Could you give me some more details? Have a picture or a quick sketch? Not understanding how the pavers and abs pipe are laid. Thanks!
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Old 05-31-2018, 09:44 AM   #19
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Re: Stopping water flooding garage


EDIT: Now that I looked at the picture again, I don't think my solutions will help you. I'm leaving them here in case they spark something or help someone else.


I have a lesser issue with this, but water in my garage due to grading as well. I looked at cutting a gutter in front of my door and covering with a grate as you mentioned. Some companies make drop-in drains like that. Then you could drop this to a dry well. Dry wells work where I live, but have to be rather deep due to frost, etc.

You could also cut and bury a small pipe so that it sticks up just far enough to stop water/debris, and concrete it back in so that <1/2 is exposed. Something like a 2" pipe raised about 1/2" would be easy to drive over.

In my case, the amount of water wasn't great, so I just bought a diamond blade for my circular saw and cut a channel. I'll take pictures if helpful, but I think I can explain. Only about half my doorway is lower, so I only cut about halfway across my opening. You could go both directions, lower at both edges.

I set up a slight ramp with a couple boards so my cut would grow deeper as I approached the edge. in the middle of my door I started with the saw and cut lower and wider as I approached the edge of my drive.The gap in front of my door is about 1/2" wide at the start and ends about 4" wide with a flare at the end because my drive is wider than my door. At the edge it'a bout 1 1/2" deep or so. This has worked perfectly except when there is a high wind blowing into my garage. Someday I'll put a better door seal on and be fine.

In my yard where the water dumps, I dug a small channel to get the water where I want it.

I can't understand why that part of my house and garage were build just at grade. It's crazy.

Last edited by beengone; 05-31-2018 at 09:58 AM. Reason: See edit note
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Old 05-31-2018, 11:54 AM   #20
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Re: Stopping water flooding garage


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Originally Posted by bcemail View Post
Could you give me some more details? Have a picture or a quick sketch? Not understanding how the pavers and abs pipe are laid. Thanks!

Sorry, I can't do either. But try this.


Draw a circle to represent a 7" pipe. inside that draw another circle smaller and at the bottom to represent a 4" pipe.
now at the top of the 4 inch pipe draw a rectangle to represent a 12x12x2 paver spanning both sides.
I only put in 30 inch pieces if 4" pipe and packed that with concrete to support the weight of my truck. When I placed the pavers I left 1/2" spaces between them. They were just a little over sloped so all the pavers were 1" lower at the garage deck.
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