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Kylekcmo
Member
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# Posted: 13 Apr 2017 01:07pm
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I am going to be building a 20x16 cabin on my lake property at Lake of the Ozarks Missouri. My main concern is that the ground is fairly sloped and has a ton of rock in it. My question is what do you think the best way is to dig down in very rocky ground for the foundation posts? It can storm pretty good down there and don't want my cabin blowing over. lol
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DaveBell
Moderator
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# Posted: 13 Apr 2017 01:39pm
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In previous posts, bed rock is useful. Using hammer drill, install rod and 4x4 plates directly on the rock.
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Cowracer
Member
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# Posted: 13 Apr 2017 03:53pm - Edited by: Cowracer
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I think he means standard Missouri Red Clay and Rock, not bedrock. Looks like this, but usually rocks are larger (softball size and bigger)
It's an absolute nightmare to deal with. The only thing you can do is rent/beg/borrow/steal a power auger. Not a two-man post digger (you'll kill yourself) but an attachment for a skid-steer or tractor, and just tough it out.
Tim
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Kylekcmo
Member
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# Posted: 13 Apr 2017 05:47pm
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You hit it right on the nail. My property is right on Lake of the Ozarks and has a lot of big rock. After some research I am sure a jack hammer is going to be needed.
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Kylekcmo
Member
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# Posted: 13 Apr 2017 05:50pm
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I don't own a skid steer or tractor. The property down to the build site would be scary to get to on a skid steer too. lol I can't afford to pay someone so I will have to figure this out myself. I will get it done though. 
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rockies
Member
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# Posted: 13 Apr 2017 08:38pm
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Do you plan on a basement, crawlspace or sitting on piers? Can you get a concrete truck in there or are you going to mix concrete by hand and build piers?
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DaveBell
Moderator
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# Posted: 13 Apr 2017 11:22pm
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Bobcat with an auger. I rent heavy equipment all the time. Running a bobcat is easy. Read up on internet,
http://www.tricorental.net/earth-moving-equipment.html
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bldginsp
Member
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# Posted: 14 Apr 2017 12:23am
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If you can't get a machine to the build site, perhaps a floating slab would work. Just level the earth, build forms with 2x12s, put a double mat of rebar in, and fill it with concrete. A concrete pumper can run pump hose to the site from the trucks a good distance away.
But if you can't get a machine there, you can't drive there, which means you have to hike in, carrying everything with you- are you sure you want to build there?
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Cowracer
Member
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# Posted: 14 Apr 2017 09:01am - Edited by: Cowracer
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You have to understand LOTO (Lake of the Ozarks) topography. It was created by damming up the Osage river for hydro-electric generation. As an artificial lake, there is literally no (or extremely few) flat areas on its shoreline. The vast majority of them look like this (or worse):
Notice how steeply it slopes to the water. I can understand his reluctance to put machinery on there, but simply "leveling out an area" is nearly impossible. I'm betting he can drive straight to his property, but the slope makes it intimidating.
I'm sure there are builders out there with the tools and technique to install your piers, but if you want to do yourself, its gonna be a miserable bitch of a job.
Tim
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Kylekcmo
Member
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# Posted: 14 Apr 2017 11:07am
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Tim, you are exactly right, I can drive right to my property and the hill is sloped hard till right before my dock. That is where I intend to build my cabin. It is still sloped but not drastically. I have a line on a jack hammer I can use for free and am going to attempt to dig down 30" or so for each pillar.
The cabin plan is for a 20x18 floor plan. I was planning on 9 holes or do you guys think I need 12?
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Kylekcmo
Member
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# Posted: 14 Apr 2017 11:09am
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Won't have the means to level ground for a slab or any kind of basement for sure so have to do pillars.
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rockies
Member
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# Posted: 15 Apr 2017 06:31pm - Edited by: rockies
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How much do you want to spend on the foundation? I plan on using a space frame which will run about $12000. It might be perfect for your site as it can be designed for a sloping terrain. There is no excavating, formwork or concrete involved and you can anchor the frame to your site.
http://multipoint-foundations.com/
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Kylekcmo
Member
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# Posted: 17 Apr 2017 11:18am
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I won't have the funds to buy a 12k foundation. I am just gathering supplies from local auctions and will be doing this for as cheap as I can. I have 2 kids and another on the way so cheaper is better. Lmao
I did however get 600 dollars worth of new windows at an auction this weekend for 45 dollars. Woohoo!
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