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Water At Deck Footing

 
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Old 05-29-2015, 09:04 AM   #1
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Water At Deck Footing


Doing a deck and while digging for footings hit water at about 32" still have another 10" to get to below frost. I am pumping water out to see if we just hit a pocket of water or if it is ground water/spring. Just thinking if it is ground water/spring how would you put drainage in around footings for a deck?
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Old 05-29-2015, 10:31 AM   #2
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Re: Water At Deck Footing


Dig out to the depth that is required for code and drawings. - You may be encountering a lot of wet soil and having a wider excavation. On a big job dewatering could be done with some early planning.

Since it only a matter of going 10" more, just tough it out and form a best as possible. Concrete has been placed below water for decades if proper methods are used (don't dump the concrete into a hole, but use a large hose/pipe to place the concrete and allow the concrete to raise the water level up). The biggest problem is to form the footings and get the rebar (if required) in place for verification by someone else if necessary.

A drawing of the size of the d eck and footing locations would be helpful.

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Old 05-29-2015, 05:33 PM   #3
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Re: Water At Deck Footing


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Originally Posted by bizz6405 View Post
Doing a deck and while digging for footings hit water at about 32" still have another 10" to get to below frost. I am pumping water out to see if we just hit a pocket of water or if it is ground water/spring. Just thinking if it is ground water/spring how would you put drainage in around footings for a deck?
r u only digging 1 hole, we ran into this 20 years ago around a pool deck, dug em all,38 holes, put a submersible pump in various holes, until we hit the magic hole that drained all the rest.

also if you dig to 56" you can put concrete in at bottom till you are at 44 or so when his tape goes in the hole it'll be hard. you should put some gravel at the bottom of the 56" hole and concrete on top 4 drainage
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Old 05-29-2015, 05:46 PM   #4
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Re: Water At Deck Footing


I'd overdig it and put gravel in the hole so you can get compaction then use stovepipe with a contractor bag taped to the bottom for the footing. It will keep the concrete from getting too wet.
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Old 05-29-2015, 06:11 PM   #5
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Re: Water At Deck Footing


Helical.
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Old 05-29-2015, 08:13 PM   #6
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Re: Water At Deck Footing


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r u only digging 1 hole, we ran into this 20 years ago around a pool deck, dug em all,38 holes, put a submersible pump in various holes, until we hit the magic hole that drained all the rest.

also if you dig to 56" you can put concrete in at bottom till you are at 44 or so when his tape goes in the hole it'll be hard. you should put some gravel at the bottom of the 56" hole and concrete on top 4 drainage
Five footings.
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Old 05-29-2015, 09:18 PM   #7
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Helical.
I'd love to go helical just so gosh darn expensive
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Old 05-30-2015, 07:43 AM   #8
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I'd love to go helical just so gosh darn expensive
Where are you?

Its a wash if not cheaper....Add in the time savings and it is definitely cheaper.

Unless you pay guys cash under the table, under minimum wage and don't need footing inspections and always use 8" sonotubes and don't use the correct standoff brackets for the post.
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Old 05-30-2015, 09:09 AM   #9
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Re: Water At Deck Footing


Pittsburgh
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Old 05-30-2015, 11:10 AM   #10
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Pittsburgh
I might have asked you that before.

Might be frowned upon so PM me and I will send you my email address if this shouldn't be an open discussion on someone else's hijacked thread, but have you calculated what a traditional concrete footing costs? From digging through pouring, and all materials and inspections.
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Old 05-30-2015, 11:55 AM   #11
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Re: Water At Deck Footing


Hijacking is good, I thought it was they way things are done on the hate thread,
lets people learn other stuff also
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Old 05-30-2015, 02:15 PM   #12
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Re: Water At Deck Footing


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I might have asked you that before.

Might be frowned upon so PM me and I will send you my email address if this shouldn't be an open discussion on someone else's hijacked thread, but have you calculated what a traditional concrete footing costs? From digging through pouring, and all materials and inspections.
Averages $95 dollars for a 10" tube with 16" footing. For me.
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Old 05-30-2015, 06:29 PM   #13
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Averages $95 dollars for a 10" tube with 16" footing. For me.
I would be $68.32 materials only, no markup, no time to pick them up...Then digging, inspection, concrete and j bolt, cure time....

How did you calculate $95?
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Old 05-30-2015, 09:19 PM   #14
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I would be $68.32 materials only, no markup, no time to pick them up...Then digging, inspection, concrete and j bolt, cure time....

How did you calculate $95?
We're talking cost so markup isn't in it. I don't pay for inspection or dry time or pickup. For me it's usually this:
Sonotube $6
6x6 ABA base $17
Quickcrete $18
Anchor bolt $2
Materials $43

Labor 3x$18

Total = $97

We're hand digging holes for a 10" tube to 42" with a flared bottom for a 16" footing.

I look for a helical installer near me every year. I'd be happy to pay a premium for that product for a number of reasons but I don't see how it could be done for less than what I have. Helical doesn't have to be cheaper. It's easier and better in several ways.
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Old 05-31-2015, 01:35 AM   #15
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Re: Water At Deck Footing


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We're talking cost so markup isn't in it. I don't pay for inspection or dry time or pickup. For me it's usually this:
Sonotube $6
6x6 ABA base $17
Quickcrete $18
Anchor bolt $2
Materials $43

Labor 3x$18

Total = $97

We're hand digging holes for a 10" tube to 42" with a flared bottom for a 16" footing.

I look for a helical installer near me every year. I'd be happy to pay a premium for that product for a number of reasons but I don't see how it could be done for less than what I have. Helical doesn't have to be cheaper. It's easier and better in several ways.
Boulders and rocky soil could be an issue. We have our share out here, especially in places like Mira Mesa.
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Old 05-31-2015, 08:51 AM   #16
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Re: Water At Deck Footing


ok Mike I'll buy one move to the land of no rain and constant sunshine and do your piers for you.
do you do a lot of them,? Are there lots of deck builders in California?, I only need to make 30k profit a month
that's about 300 piers a month. 75 a week 15 a day

I might be able to struggle by on 20k not sure though, that would be almost like welfare.

Last edited by killerdecks; 05-31-2015 at 08:54 AM.
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Old 05-31-2015, 12:29 PM   #17
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Re: Water At Deck Footing


Steve, I can't remember, do you have a helical machine? I'm not really interested in diversifying(heading the other direction actually) but you do enough decks to own one for just your company, I would think.


Edit: Never mind. I just remembered that you bury your posts so it wouldn't fit your designs. My memory is going...
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Old 05-31-2015, 01:36 PM   #18
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Re: Water At Deck Footing


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ok Mike I'll buy one move to the land of no rain and constant sunshine and do your piers for you.
do you do a lot of them,? Are there lots of deck builders in California?, I only need to make 30k profit a month
that's about 300 piers a month. 75 a week 15 a day

I might be able to struggle by on 20k not sure though, that would be almost like welfare.
My footings are often only 18" deep. Makes more sense to just dig them.
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Old 05-31-2015, 03:09 PM   #19
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My footings are often only 18" deep. Makes more sense to just dig them.
all the more reason to be your helical guy, less work, and than I can charge the real big spenders over there more money for a better thing

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