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Old 03-31-2015, 07:40 PM   #1
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Inside Curved Retaining Wall

Hey Folks--I am in the planning stages for a stackable block retaining wall. The wall I want to install has an inside curve to it and the part I am having a hard time wrapping my head around is the offset of the curve. I plan to use Anchor Highland or something similar that comes with the rear tab to alleviate the use of pins or other materials. I've been told by various folks that this is the way to go as once you have your first course laid and level you just stack it up and you're there. The trouble is that when I get to the inside curve, the radius gets smaller which brings the offset forward rather than backward. I think this is partially caused by the stagger in the courses of blocks to maintain the strength of the wall. Located in South Dakota, the overall height of the wall is about 3' all the way down to 6". My backyard has a pretty hefty slope to it so lots of landscaping in my future.
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Old 04-01-2015, 07:32 AM   #2
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Here's a link to the mfgr site. You can download pdf's of many different situations. Ask if you still have particular questions.
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Old 04-01-2015, 03:14 PM   #3
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For me the only problems with inside curves was keeping the vertical joints from lining up. Since each course goes through a slightly different radius bend because of the setback, it's impossible to keep the vertical joints perfectly staggered. They end up wanting to "line up" eventually. I used Allen Blocks, and bought a few "mini" blocks that are half width of a normal blocks. Whenever the joints were working towards lining up, I'd put one in to get them staggered again. I think I used about 6 in the whole wall. I've tried to highlight a few below.

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