Trench Drain Installation

[StrongEagle]

This forum is a great find as I am about to embark on a thorough upgrade of my garage.

To start, I need to deal with drainage. Over the last 25 years, the drought in Houston and overall settlement of driveway and garage slab have caused a low spot that causes water to pool in the driveway and about 3 or 4 feet into the garage.

I have decided that a trench drain across the garage doors is the solution. I already have a 4" drain running from the street all the way parallel to the edge of my driveway and up to the garage. This drains the water from the remainder of the driveway... except for the low spot.

Here's the idea and the questions. My driveway abuts the garage slab. I'm thinking about installing 4" wide Square D drain. What I _thought_ I would do is rent a concrete saw and cut the driveway back 4" from the garage slab. Then, I'd dig out the dirt, set in a good gravel/sand base and drop in the trench drain.

Then, I went and looked at trench drains. Yes, they are 4" wide but they also protrude an extra inch on each side to allow for holes used to tie down the drain with rebar or other fastening spikes.

I was really hoping not to do a concrete pour... just cut a slit wide enough for the drain. Has anyone done this, and if so, how?

TIA.

 

[matt_i]

Maybe choose a different brand? I found this via google, i know nothing of their product other than it doesn't seem to have the outriggers....

http://www.trenchdrainsupply.com/trench-drain.asp

 

[biketrials25]

Wow, I've been thinking about doing the same thing but to prevent water from running up against my garage during heavy rains... Very interested to see what others have done.

 

[StrongEagle]

This link was sent to me by the guy at Trench Drain Systems. Making me rethink things.

http://plastictrenchdrain.com/

 

[StrongEagle]

The gent at Trench Drain Systems sent me an informative link. I'm going to have to rethink this.

http://plastictrenchdrain.com/

 

[chase237]

I had an issue with water also, funny, we sit on top of a hill and the last thing I thought I'd have to deal with was water pooling. Anyway, the trench drain specs call for something like 6" of concrete on each side then the drains put in then final pour around the drain. The drains are basically placed on a footing to carry the load of the vehicle traffic. If you just cut the existing and try to slide the trench drain in, it will give and eventually cause all kinds of headaches in the future.

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[flat350]

If you put in a trench drain and do not anchor it down VERY WELL it will float up and out of the ground the first time water has a chance to get under it,that's why they want all of the concrete under and around them.I've done them up to 400' long and we'll have a couple of guy's on site when they pour the concrete,and I've never had one that didn't require some kind of adjustment as they pour,they have to be secured very well.

 

[BearsFan315]

did this on my garage, got the drain and covers from lowes. NDS stuff, rated for car weight as well as the PVC pipe to drain to the street. and a pop up emitter.

rented concrete saw from local rental for 1/2 day, cut a slot in driveway, dug out, put in sand/ rock base sloped drain to the drain side, returned saw & rented a small mixer and bought bag crete, mixed and poured in. did it all in an afternoon.

pictures of my mess: Garage Drain Project

Tell you it works GREAT no more issues with water in the garage !!
worth the time and money !! i go and flush it out a few times a year dues to debris and leaves.

 

[StrongEagle]

Thanks for this post. You installation looks very similar to what I would have to do. I have a four inch pipe running down the side of my driveway to the street.

I was hoping to avoid all the work of concreting in the drain as you have done but after reading the article I posted at the link, and looking at your work, I see that is the only realistic way to proceed.

Cheers.

did this on my garage, got the drain and covers from lowes. NDS stuff, rated for car weight as well as the PVC pipe to drain to the street. and a pop up emitter.

rented concrete saw from local rental for 1/2 day, cut a slot in driveway, dug out, put in sand/ rock base sloped drain to the drain side, returned saw & rented a small mixer and bought bag crete, mixed and poured in. did it all in an afternoon.

pictures of my mess: Garage Drain Project

Tell you it works GREAT no more issues with water in the garage !!
worth the time and money !! i go and flush it out a few times a year dues to debris and leaves.

 

[BearsFan315]

keep us posted and provide pictures !!