Trench Drain question

[89GLH]

Ok so it's floor related, only in that it gets installed there. Sorry if this forum is reserved for epoxy coatings and carpet. HEre goes.

I need a tranch drain installed at the bottom of my driveway, in front of the garage. The driveway slopes back toward the house at about a 15° angle. The previous owner of my house installed a trench of sorts, basically a brick trough with steel grates over it. Cars and time in general pushed the bricks out further under the grates, to the point that the driveway is collapsing under the asphalt. I have been looking at trench trains, to clean up the look of the driveway and fix the asphalt currently under duress. Cliffs notes:

-Previous owner installed crappy brick driveway drain
-Driveway collapsing from bricks washing out
-2 downspouts empty into it, plus driveway runoff

I have a few questions though...

I know from my experience plumbing you don't want a level drain. 1/8" per foot, got it. How do the trenches need to be set to keep the grates level? It would look odd of the grates weren't level for the whole 12 foot run of the garage width.

 

[SUPERFORD]

look for a product like ZURN brand trench drains. They offer tons of choices of grates, and the slope is already built into the product.

 

[LegacyIndustrial]

I second SuperFord's advice.

Go to a masonry supply shop. They will have the drain and be able to guide you with the installation.

 

[dlc]

The Zurn looks nice but this appears to be a much cheaper solution:

http://www.amazon.com/dp/B000IK2CZI/?tag=atomicindus08-20

 

[383]

If it is only 12 feet long I believe you could install it level, or with very minimal slope instead of the 1/8" per foot. Water won't pond in it much before it runs out.

 

[Charles (in GA)]

Along with precast versions, you can get styrofoam molds that you set forms, set the molds, pour cement, pull out the forms and molds, and you have a poured in place drain. Like the precast ones, the molds have slope made into them.

Charles

 

[89GLH]

I need something deeper than 4" though. Any more rain and I get a wet garage. I found the NDS pro series, 8" x 20" grate for around $130 per section complete. 8" deep and 7" across the top, and can hold a car. Exactly what I need.

 

[Wastedwagesracing]

Along with precast versions, you can get styrofoam molds that you set forms, set the molds, pour cement, pull out the forms and molds, and you have a poured in place drain. Like the precast ones, the molds have slope made into them.

Charles

Do you have a link to those? thanks

 

[larry4406]

We used ACO trench drain at work. The road surface grate was set level while the internal bottom was sloped to the end. The drain segments were like 3 to 4' pre made lengths with the drain floor sloped accordingly all pre-made. Trench was dug, drain segments placed and connected together, then the unit was encased in concrete pour. Then asphalt tie in.

 

[89GLH]

Ended up getting the NDS dura-slope, a lot cheaper than I thought from a local dealer here in Westminster. Got the end caps and hardware online, since ironically they were cheaper. Just going to run corrugated pipe off a 90° along the house, about 18" deep. Should be plenty, dont need schedule 40 for drain water. Corrugated 90° to about 60' of solid corrugated pipe should do it, anchored about every 3 feet with tie wire. I may take some pictures for a build thread of sorts, nothing crazy.

 

[89GLH]

Got it all and after 4 yards of cement, it's final. After the drain was wired to the rebar, I drove more rebar back under the driveway into the dirt and tie wired it to the verticals. Nice and sturdy. I used sched. 40 90°s and sched. 40 runs out around the house, and went to corrugated where there's no traffic. 8" deep may be a bit extreme for a residence, but theres no chance it will overflow now. Anything worth doing is worth overdoing, especially when it comes to getting water the f*ck away from my house. Pics in a bit.

 

[tncatadjuster]

Photos please, I would be interested in learning a little in this area.

 

[Tim Kennedy]

Hello: Keep in mind - water will flow in a level pipe - but keep it at an 1/8% slope [1/8 inch drop in 100 feet] & you should be ok.

 

[Alchymist]

Hello: Keep in mind - water will flow in a level pipe - but keep it at an 1/8% slope [1/8 inch drop in 100 feet] & you should be ok.

Yeah, that'll work!

 

[tncatadjuster]

Yeah, that'll work!

1/16, whatever it takes.

 

[CamarosRus]

Nobody will post pics of these components and installs.........

WE would like too see pictures to help us learn

I want to install drain(s) to below floor

 

[jhelrey]

What they did in my house is cut out approx. 4-5 feet of pavement. They installed a new concrete apron that is slopped like a ditch to drain off to one side. The water from driveway hits it and the water draining out of the garage hits it as well.

 

[4EyedTurd]

That NDS presloped stuff looks like it would be an easy install. I put about 10 or 12' infront of the carport since its the lowest part of the driveway. I got it from Lowes and it works pretty good except my driveway is gravel and ends up filling the trench up after a good rain.

I'm trying to figure a way to finish the discharge end into a ditch without worrying about it getting plugged up or ran over with the lawn mower