View Full Version : Drainage Problems

03-21-2012, 12:13 AM
Hello all.

I am having serious drainage problems and it's causing havoc on my lawn. Below I have attached some pictures. A guy installed a "french drain" which later i found out he didn't know what the hell he was doing. When it rains it's almost as if I have a little channel of water going through my yard. It ends at the drain and just pools in the driveway. In a few of the pictures I give you a line of sight of where the water sits and sogs the lawn. I am about to scalp and top dress the lawn and figure it would be a good time to correct the drainage issues.I am guessing I will need to bring in some top soil to level off the lawn. Would I have to reseed those areas and run the risk of having the grass look different than the other bermuda? I'm also getting a lot of erosion from the flower bed....which need to be redone badly.


03-21-2012, 11:59 AM
What was the point in the french drain when you don't address one of the major sources of water .... the roof drainage? Without putting my eyes on it, I'm betting if you deal with the roof drainage, your yard problems will mostly go away.

03-21-2012, 12:17 PM
wow...as simple as that sounds...I had never thought of it. So just getting those tube things that go into the ground from the gutters, should help clear this up?

03-21-2012, 12:34 PM
Drain the gutters to an appropriately located drywell, drainage swale, or to the street, the street being the last option assuming it is even allowed. Always better to handle your site drainage on site. Based on the pic that shows the length of the side yard, you have a swale of sorts already, which is running all the water to the front yard into the problem area. Either way, moving the water from your roof drainage to another area is always recommended (i.e. don't allow it to dump right next to the house). Next thing I might look at (once the roof drainage is taken care of) is the soil characteristics in the current "swale" area and see what could be done to improve the hydraulic conductivity.

03-21-2012, 01:09 PM
Where is the outlet for the french drain? It looks like it is in the low point of the swale. That only solves part of the issue. Knowing where the water does from the drain is the next question.

If the soil type allows it I'd vote for almost two dry wells. One for the current french drain, unless it outlets or "daylights" some place where it isn't someone else's problem. And a second drywell for downspout. Make sure it is far enough from the house that it doesn't cause issues the foundation or water in the basement.

On edit: looking at the swale I wonder why it is there is the first place. It looks like there is adequate slope from the front of the house to the curb and gutter. Between the right amount of slope and hydraulic conductivity that should eliminate any issues.