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Retaining wall Drainage

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Topic by siouxdawgs0409 posted 05-21-2010 09:08 PM 3843 views 0 times favorited 2 replies Add to Favorites Watch
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siouxdawgs0409

10 posts in 4094 days

05-21-2010 09:08 PM

Hello all.
I just installed a 3ft high on one end 1 ft high on the other end retaining wall along my driveway and have some questions. The driveway slopes toward the retaining wall so the water flows that way. I constructed the wall by cutting into the slope of the grass that was building up to the driveway. I made the base for the wall level and used step ups where i could to keep me from digging a huge hole, as the slope also sloped up from the starting point. So I was dealing with a horizontal slope and vertical slope. the retaining wall is going to give me level land next to my driveway, hence why I built it. Now I laid in a good 5-6 inches of M10 granite sand and packed well. Then right behind there I laid 4 inch perforated pipe with a sock over it and then vented it to daylight at the lowest point. The wall is only about 25 ft long. I backfilled with 3/4 granite rock on top of the pipe and plan on putting decorative rock on top to finish it. Now there is a chunk of dirt I did not disturb during the contruction, about a 2 ft wide section from the driveway to the pipe the entire length of the wall. Now we just recently had some heavy rains, 1.75 inches in about 3-4 hours time. I was wondering if water should be pourinig out of the drain tile I laid? It seems to me that it is doing its job by carrying the water away from the base of the wall, but most people said that it would be trickling out. I am assuming that it is from the ground being so saturated that all the water is just running off and filling up my pipe and draining.



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UnionLabel

70 posts in 4122 days

05-22-2010 01:24 AM

You are right to be concerned, but really the drain is doing its job. The rain water hit the backside of the retaining wall as it leached through the ground and the tile is removing it. Got to love it when all your good work come together.

-- Methods are many,Principles are few.Methods change often,Principles never do.

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Jeffison

4 posts in 1752 days

07-03-2016 10:36 PM

siouxdawgs0409, could you explain how you could bring up the topic of keeping wall damage safe, especially for those that deal with garage door repairs and gate repairs in Orange County, CA? My friend owns a gate repair company that sometimes wants to redo the entire gate, which means he may have to damage the walls that are holding on the gate. We want to minimize the damage. Do you know any wall tips? Thanks.

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