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Retaining wall construction.

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husker77c:
If any of you have ever been to Pittsburgh you know that none of it is flat.  We have about a 1/2 acre of land but it drops off about 6' over 30' off of our parking area then the slope gradually lessens down to almost flat at the back of the property. 

I am getting quotes to build a retaining wall to expand our parking area this summer and to have a place for a future garage. 

Has anyone built a wall this high?   The back of the wall will be close to 6' high.  If it was a foot or two I might try to build it myself but that high I know I'm going to have to have a professional do it.   Can't have it fail with two big diesel trucks sitting on it.  Or a building in the future.

Short video of the area.




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stlaser:
Helped a buddy of mine build a couple over 8' tall. Get the foundation laid level & compacted correctly & make sure you put an adequate drain tile system in behind at base (use plenty of pea gravel around tile) and there should not be an issue.

Dawg25385:
At 6', I wonder how close it would be cost wise to just having a concrete wall formed and poured, especially if there's any thoughts of a building in the future.

You're going to want to consider pouring a concrete footing for a block wall anyway...

stlaser:
1' bucket on a hoe & you can easily poor you a footer. All the labor on a concrete wall like that is forming.

HD rents mini hoes that would be ideal to use in a situation like this

husker77c:
I had thought about forming and pouring a wall,  i would think you would need a fairly large footer buried at the bottom of the tall end to keep the whole U shape from sliding down the hill.   but it would be a challenge to get a concrete truck to the back wall.  Would almost have to rent a pump. 

I thought about timbers and installing a deadman back into the ground every few rows up. 

I would have to rent a roller or a jumping jack to compact the soil every few truck loads of fill.

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