Providing drains for conduit that runs underground

[TwoBlocked]

Came across a split conduit that I have to assume was from frozen water. Yet how could this happen in this instance, and in general, how do you provide drainage for conduit that goes underground?

 

[roger]

At some low spot in the run we would provide a French drain (say a 2'x2'x3' hole with stone) with landscape cloth below the conduit and a "T" fitting for water to drain.

 

[infinity]

Came across a split conduit that I have to assume was from frozen water. Yet how could this happen in this instance, and in general, how do you provide drainage for conduit that goes underground?

That doesn't appear to be a low spot in the run so do you think that the entire conduit filled with water? If not I don't see that being from freezing. Looks like it rusted out before it split.

 

[TwoBlocked]

That doesn't appear to be a low spot in the run so do you think that the entire conduit filled with water? If not I don't see that being from freezing. Looks like it rusted out before it split.

I don't know just what to think. have you seen something like this before? EDIT: I saw a very similar split on a conduit that we are pretty certain was from water freezing.

 

[marmathsen]

At some low spot in the run we would provide a French drain (say a 2'x2'x3' hole with stone) with landscape cloth below the conduit and a "T" fitting for water to drain.

You bury a "T" condulet?

Rob G
Seattle

 

[don_resqcapt19]

Our utility shows this detail in their installation manual

 

[Dsg319]

Came across a split conduit that I have to assume was from frozen water. Yet how could this happen in this instance, and in general, how do you provide drainage for conduit that goes underground?

View attachment 2580487View attachment 2580488

Which gas company your working for?

 

[TwoBlocked]

Which gas company your working for?

None. I work for a contractor.

 

[roger]

You bury a "T" condulet?

Rob G
Seattle

Yes. I have also done similar to the detail Don shows.

 

[ptonsparky]

IMO, that looks more like something caustic was spilled or drips on it.

Are one of the conductors forced out between the split? That would change my thought.

 

[Dsg319]

None. I work for a contractor.

What kind of place is that your working at, looks like a meter/regulation skid or something of that.

I know in my line of work I have never put anything special for a conduit that goes underground as far as a drain. Only on the above grade sections at the lowest point.

 

[ptonsparky]

Ice damage

 

[TwoBlocked]

What kind of place is that your working at, looks like a meter/regulation skid or something of that.

...

I'd rather not say. Consider it all to be hypothetical.

 

[don_resqcapt19]

View attachment 2580500

Ice damage

We traced an issue like that for a couple of weeks in a tank farm. It was an I/O circuit and late in the day when the ice would melt, the conduit would relax and cause a short circuit, then later when the water froze again the split would get larger and the short would go away.
It was the last time I installed a short "U" shaped conduit without adding a drain.

 

[TwoBlocked]

I am going to guess that the conduit with the split in my original post came back out of the ground somewhere, and high enough that when water entered, it found it's level where the break is. But hey! Now there is a place for it to drain!