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...been a while since I have posted...

I am about to construct a Mueller Inc. shed and I need to dig four holes rough 3' deep and 10" dia.
1) I can hire the job (not cheap)
2) I can do it by hand (lol)
3) I can call in an air strike (wishful thinking)
4) Rent a jack hammer (realistic)
5) Buy something to attach to my 3032E tractor (wooohooo!!...excuse to buy more stuff!!!)

I like #5, but not sure what that is. Yeah, 10 grand for a belltec would be fun but I might catch a frying pan up side the head from you know who.

Hill Country soil (right) is a few grains of dirt followed by a piece of limestone. Sometimes rather small and sometimes larger. I have dug up a lot of rock around here with my grapple. I guess I could dig up the entire 12x12 area and then refill after placing the posts and concreting them in. I am looking for a surgical approach. I am not optimistic, but maybe there is a genius out there that can help me.

I am all ears!
 

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If the "soil" is in fact 99percent rock I'd rent a mini ex with a breaker if I were you. Probably your cheapest and most efficient way to go.
 

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That narrow and deep of a hole really would be really tough to do with a jackhammer or anything else other than an auger. I had a driller make a 48" diameter and 8' deep hole for my ham radio tower, that was mucho dinero. It was 7' of solid limestone.
 

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...been a while since I have posted...

I am about to construct a Mueller Inc. shed and I need to dig four holes rough 3' deep and 10" dia.
1) I can hire the job (not cheap)
2) I can do it by hand (lol)
3) I can call in an air strike (wishful thinking)
4) Rent a jack hammer (realistic)
5) Buy something to attach to my 3032E tractor (wooohooo!!...excuse to buy more stuff!!!)

I like #5, but not sure what that is. Yeah, 10 grand for a belltec would be fun but I might catch a frying pan up side the head from you know who.

Hill Country soil (right) is a few grains of dirt followed by a piece of limestone. Sometimes rather small and sometimes larger. I have dug up a lot of rock around here with my grapple. I guess I could dig up the entire 12x12 area and then refill after placing the posts and concreting them in. I am looking for a surgical approach. I am not optimistic, but maybe there is a genius out there that can help me.

I am all ears!
if the ground is augerable......i would buy or rent a auger ......around here you can buy NEW hydraulic augers for skidsteers for under $2500 so i am sure there are reasonable options for a tractor......i think 10k is far to much

in my current situation ...i have a hydrahammer and a post pounder....i would drive steel beam piles and be done with it.....lots of land owners/fence contractors have heavy post drivers and it should be easy and cheap to find someone to put them in
 

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DeereWimb - We dug six holes on my land this afternoon via stump grinding the three tree stumps from the trees that were removed last week along with two prior unground stumps and an unwanted bush/shrub.

For your soil conditions, you may want to consider renting a 3-pt auger for your tractor and having a spud bar and narrow spout shovel handy to deal with the rock. If you had a helper or two, you may get by with a motorized hand auger, which is like an ice auger.

I would also challenge the need for a precise 3 ft. deep hole; it may not need to be that deep if posts are set in Quick-Crete

Food for thought,

Brian

...been a while since I have posted...

I am about to construct a Mueller Inc. shed and I need to dig four holes rough 3' deep and 10" dia.
1) I can hire the job (not cheap)
2) I can do it by hand (lol)
3) I can call in an air strike (wishful thinking)
4) Rent a jack hammer (realistic)
5) Buy something to attach to my 3032E tractor (wooohooo!!...excuse to buy more stuff!!!)

I like #5, but not sure what that is. Yeah, 10 grand for a belltec would be fun but I might catch a frying pan up side the head from you know who.

Hill Country soil (right) is a few grains of dirt followed by a piece of limestone. Sometimes rather small and sometimes larger. I have dug up a lot of rock around here with my grapple. I guess I could dig up the entire 12x12 area and then refill after placing the posts and concreting them in. I am looking for a surgical approach. I am not optimistic, but maybe there is a genius out there that can help me.

I am all ears!
 

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From what I've heard of Texas hill country soils; you are in for a hell of workout. Personally I'd avoid using a PTO powered 3PH post hole digger (PHD) since they can't be reversed if you snag a root or catch on it on hard-pan. When I had my PHD I snagged the auger on hard-pan after it broke through and it went through the soft dirt underneath so quickly that I had the damn thing buried up to the gearbox. That was a PITA to get it out, and that's when I decided to trade the damn thing in as a down payment for a lawn tractor.

If you insist on doing the job yourself, rent a hydraulic powered PHD that can be reversed with the cutting edge of the auger specifically designed for rock, or hire it done. I'd also go with a skidsteer mounted PHD.
 

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^^ Yes ^^

A 3 point hitch auger is going nowhere in our soils unless you are really, really lucky. I buried an antelope a couple of weeks ago with my excavator and I was amazed I could dig down about three feet, actually astounded is a better adjective.
 
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