Curved drain for concrete along retaining wall

[jpcjguy]

Hi all,

So the wall is built and we are going with a stamped concrete up to it. If you look at the picture, all the pavers, dirt, gravel, etc. will be replaced with concrete - up to the asphalt driveway. The red arrows are the proposed slope away from the house and the green arrow would be the drain near/against the wall and the direction of flow. The stamped concrete will continue all the way to the other end of the house and a screen porch added tying into the retaining wall. So the drainage will continue that way also to follow the natural fall of the land. The blue lines in the pic outline the porch with the green continuing from the wall
My question is for the concrete against the retaining wall and the curve - what recommendations does everyone have for a curved channel that can be put into place that captures the water and would be easy to clean out as I have a fair amount of trees on the property.
I hope to meet with the concrete guy in the next week or two and I am sure he will have a plan - but trying to do homework on what has worked for people in the past and options...

Thanks!

 

[jpcjguy]

Thinking something like this against/near the wall...?

 

[larry_g]

I had a similar situation and I just tapered the last foot on the edge near the wall so that it was a shallow swale that the water could collect in and run off down the hill. Easy to clean with a broom or the pressure washer. I also had drain pipe behind the retaining wall so that any water coming down the hill would be caught and moved away before putting pressure behind the wall.

You can see pictures in this thread; https://www.garagejournal.com/forum/threads/lets-talk-about-staining-concrete.456156/#post-8557215

lg

 

[Hooked]

I had a similar situation and I just tapered the last foot on the edge near the wall so that it was a shallow swale that the water could collect in and run off down the hill. Easy to clean with a broom or the pressure washer. I also had drain pipe behind the retaining wall so that any water coming down the hill would be caught and moved away before putting pressure behind the wall.

lg

This is what I did along the sides of my boat shed where it meets the slab for my 'parking' area around my workshop. Only a very slight slope but it drains well.

 

[jpcjguy]

I had a similar situation and I just tapered the last foot on the edge near the wall so that it was a shallow swale that the water could collect in and run off down the hill. Easy to clean with a broom or the pressure washer. I also had drain pipe behind the retaining wall so that any water coming down the hill would be caught and moved away before putting pressure behind the wall.

You can see pictures in this thread; https://www.garagejournal.com/forum/threads/lets-talk-about-staining-concrete.456156/#post-8557215

lg

That is not a bad idea, I guess I could put an actual drain where it will go under the slab and out the other side....

 

[firebirdparts]

A nice thing about the drain is that dirt falls down in there instead of collecting on the floor. Out of sight. Other than that it’s a lot more work to build a drain. That pool drain you pictured has short straight grates. If you pick the grate, the rat you can do by hand. My preference is to have it big enough to run a trenching shovel through once a year, but a tiny gardening trowel would be okay too.

Alternative would be plastic pool drain. They make a reasonably large curvable version.

 

[CluelessPro]

Vodaland has a curve drain option.

Easy Custom Curve

Customize your drainage system with the Easy Custom Curve Beta. Versatile and adaptable for unique project needs. Design your solution today!

vodaland-usa.com

 

[jpcjguy]

Vodaland has a curve drain option.

Easy Custom Curve

Customize your drainage system with the Easy Custom Curve Beta. Versatile and adaptable for unique project needs. Design your solution today!

vodaland-usa.com

thanks for that - possible option....