Pole barn down spout location

[wewiserangers]

Stem wall is poured for a new building. Should I go ahead and put in the down spout drains now or wait until after the building is complete?

If I do it now how far off the corner of the foundation should the drains be? And how far away from the foundation? Just want to make sure I have it right to prevebt doing it twice.

Building is a 48x64. Downspout in each corner. Connecting two drains together into 4" sdr11 on each side.

 

[BurtEggley]

is this going to a sump or to a drainage system?

 

[dcg9381]

If I do it now how far off the corner of the foundation should the drains be? And how far away from the foundation? Just want to make sure I have it right to prevebt doing it twice.

Building is a 48x64. Downspout in each corner. Connecting two drains together into 4" sdr11 on each side.

Dude, need a photo. Some buildings of that size are fine with no drains and some are screwed.

But what I can tell you from doing water collection, is that bringing two drains together on a 3000 sqft building, you can easily exceed 4" of drain, at least here... And we get 30" of rain per year. Gallons per minute can be remarkable if you get 1" in 10 minutes.

4 spouts total? What's the ground level look like and where can you shed that water?

 

[wewiserangers]

Dude, need a photo. Some buildings of that size are fine with no drains and some are screwed.

But what I can tell you from doing water collection, is that bringing two drains together on a 3000 sqft building, you can easily exceed 4" of drain, at least here... And we get 30" of rain per year. Gallons per minute can be remarkable if you get 1" in 10 minutes.

4 spouts total? What's the ground level look like and where can you shed that water?

The site has great drainage with a natural slope away from the building in 3 directions so no issues there. I plan to surface discharge the pipes off the back of the building I just need to know how close to the building corner and distance from the foundation the risers should be to meet the down spouts.