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Old 09-30-2013, 12:51 AM   #46
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Pouring a foundation under an old house?


Before you go to far down the road with your plans, you need to get a good foundation man or a civil engineer under that house to see what you have. Some of those houses are too fragile and so expensive to lift, that you are better off tearing them down and starting over. It can be less expensive in the long run. Others are relatively easy to do.

Don't count on any backhoe digging under the house before it is lifted. Consider it all hand work. Then anything done with the hoe is saving you money, not costing you extra for hand digging.

No one can tell you what the foundation is going to look like until someone has been under it. You can't assume a standard perimeter foundation. It may need more of a post and beam approach.

What is the current floor height above ground level ? How much higher are you willing to have that floor in the future ?

By the way, is it two story ? Any brick chimneys ?

I would be just as concerned about the design of earthquake tiedowns for this structure as for the foundation design. If there is no beef to the structure, there is nothing much to tie to. So you may need a lot of hardware in addition to additional support.

Earlier you said that you are about 30 miles from the San Andreas Fault. That may be how far you drive to see traces of it on land. If you are in the town I think you are (General store has a German sounding name), the town is about 3.5 miles from the fault as the crow flies.

The good news is that most of the guys are talking about deeper foundations than you will need. They do them that way because of cold weather and frost heave. You don't need them that deep. So IF you can use a perimeter foundation, you would probably need about 1/2 the quantity of concrete.

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Old 09-30-2013, 01:12 PM   #47
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Pouring a foundation under an old house?


yeah... what he said!!!! you cant lift a house with a brick chimney. i incorractly assumed it was cabin style. we get those all the time. but if you need the foundation to get financing you going to need hurricane straps and earthquake ties to bring it up to code. sewer needs to be redone electrical etc. if inspections are required, permits are 500 to 1000. and as soon as they see the electrical then they want the whole house done. we did cabins outside the city no problem but inside... forget it. it was cheaper to move the house onto a new piece of property. some houses barely survived the move. new property 15,000.moving the house 15,000,connecting to active sewer water and electric 15,000. Nice houses though.but we barely got our money back. so really you have to look and see whats touching the ground. if its the four sides, its not too hard, but if its touching anywhere in the middle, you need pads. which means a higher lift, and more money, and harder digging. you have to be under the house to dig. i assumed a perimeter lift but thats not always the case. brick chimneys must be destroyed. a house mover would tell you if you need an engineering plan. which will double the cost of the lift. i think our plans were 1500, inspections 500 three times,1500 to connect to utillities. we did several moves and lifts. if it had to be moved through the city we had to pay someone to cut and restore utillities(too high)so everything has to be mapped out to the smallest detail. jobs like this can bankrupt a person.
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Old 09-30-2013, 05:27 PM   #48
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Pouring a foundation under an old house?


Well, you sound very tough- but I'm from wine country- where no-one likes physical work. We simply don't have an abundance of people like you.
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Old 09-30-2013, 08:44 PM   #49
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Pouring a foundation under an old house?


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That usually doesn't happen with a seasoned worker,but it can.

In the Midwest they routinely used 6 cu.ft. wheelbarrows,and would fill to just below the rim if on a reasonably flat surface,which meant 4.5 cu.ft.,so 6 to a cubic yd.
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Old 10-05-2013, 12:13 PM   #50
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Pouring a foundation under an old house?


Shayne, to give you some background, I worked for 6 years at a concrete plant, as a mixer driver and quality control technician, and I can say with absolute certainty that concrete, depending on the mix, weighs between 3800-4000lbs per yard.

Sorry for the thread hijack.
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Old 10-05-2013, 03:27 PM   #51
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Pouring a foundation under an old house?


i guessed by your photo mort that you knew waaaaaay more about concrete that i did. i just pushed a barrow. my dad never told me why. but every member of the crew was 250 lbs and i was 100. so i was determined to try to keep up. i did good but i didn't know that my dad was cheap. Pump trucks are in short supply. Very expensive. and anchorage is basically built into the side of a mountain. so we could get the chute to half the footing. i guess that earned us surplus time. so we were able to barrow the other half in the time allowed. we had ramps and stuff, but it was a supreme effort for me. i think my dad would have been better off getting a real man to take my place. it was probably my fault when we fell behind. He didn't tell me we were being charged by the minute. i thought we had an hour on the truck. so i learned something from this thread and i think everyone who read it did too, that's what this forum is about isn't it? thank you jannineish for dispelling the mystery for me. i think you helped me more than i helped you. i had to make some calls and do some googling. i think i know more now than when you started this thread.
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Old 10-05-2013, 03:29 PM   #52
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Pouring a foundation under an old house?


what kind of wine janninesh?
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Old 10-05-2013, 03:34 PM   #53
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Pouring a foundation under an old house?


we have blackberry wine,and rasberry and blueberry. and honey made from fireweed. im sorry i meant, what brand? will i see it at the store. or do they sell product to the wine makers?I dont want to get too far off topic. i just want to learn EVERYTHING about everything. is it good wine? I make beer but its not awesome.
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Old 10-05-2013, 09:10 PM   #54
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Pouring a foundation under an old house?


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we have blackberry wine,and rasberry and blueberry. and honey made from fireweed. im sorry i meant, what brand? will i see it at the store. or do they sell product to the wine makers?I dont want to get too far off topic. i just want to learn EVERYTHING about everything. is it good wine? I make beer but its not awesome.
All kinds- mostly of grapes, of course. Any wine you see that was made in California was likely made in the area I live- but that's like, a 100 mile radius.

My point was mainly that the citizens around here are mostly snobby businessmen and whiny laborers that take too many breaks.

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