Depth for a water line

Anonymous-0

Well-known Member
What would be a safe depth for a waterline in the Baltimore, MD area. Also it is for seasonal (April through September) service. Thanks in advance. J.
 
2-2 1/2 feet should be OK- I live N of Bmore, and mine is about 2 1/2 down to the barn. Never had any trouble.
 
If you're in doubt, run the line through another slightly larger one. The airspace will be equivalent to approximately 2ft. of depth, and the extra tubing will be cheaper than digging a 2ft. deeper trench.
 
If its seasonal, make provision for shut off and drainage of the line when not in use, and 2 feet will be fine.
 
Listen to all the experts, get the best information you can, then double it.

That was my dads theory. He hated doing anything over. And digging up froze water pipes when it is 28 below and the wind is about 80 MPH is not fun.

With a trencher that extra foot is just not a problem.

Plus on our farm you would be surprised how much the barnlots will erode in 30 years or so.

We have hedge corner posts that my dad set in concrete in the 1950's and now a good foot of concrete is showing.

Gene
 
6 feet in South Dakota. Easier to put it in deep the first time than to go back and do it over. You only have the mess once and probably wouldn't run a whole lot more to get it right. But then, it gets to -35 some nights around here.
 
All of my water lines are at least 7 feet deep and some are closer to 8 or 9 feet deep [i:3b03ab1c12]here[/i:3b03ab1c12]. I like the overdue it once and then not have to worry about it again method.
 

John,

3 ft is plenty , deepest I have seen frost
here is 29 inches the winter of 67-68 ,has not
been that cold since.
Donjr and I are about the same distance north,
I am on the pa line and he is close.

george
 
I'm not trying to be a smart a$$, I just want to know. What do you guys hitting stone before you hit the frostline do for water to the house?? It's one thing if it freezes to the barn, quite another if you loose it in the house. Just curious...... We don't have a problem with rocks/stone around here.

Tim
 
That MIGHT work for a water line that gets a lot of use. I sure wouldn't depend on it for a line going to an outbuilding.

What does work is to put insulation ABOVE the pipe. This will raise the temperature of the soil around the pipe, since the ground below the pipe is necessarily warmer than the ground above the pipe. But insulating the pipe itself won't work because as soon as you shut the water off it will start to cool to whatever the soil temperature is. It is no different that putting a thermos of coffee outside in sub-zero temperatures and assuming it will never freeze.
 
I wouldn't know for that area but what ever it is if you go under a well used drive it will need to be deeper than where it is not under a drive. I spent three days in -10 degree weather with a jack hammer to get water back to a factory for restrooms in the late 1960's. No problem until the factory grew and trafic picked up over the water line.
If you never run a jack hammer in -10 degree weather with wind and snow in Michigan you missed a bunch of fun.
 
I'd guess that you'd probably be fine at 1' of depth if frost was your only worry. We've got stuff laying on the ground here that hardly ever freezes but there's always water going through it...
In practical terms... anything that gets buried is put down at least 4' here. Simply because the yards/fields/ etc can get eroded over time... then somebody comes along and makes a 2' deep rut. I don't want to find a water line like that... again.

Rod
 

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