Question
I am pouring cement for an RV pad next to my garage. I have a gutter down spout on the corner of my garage. I would like to bury a drainage pipe under the new concrete as opposed to letting the water run on top of the cement. I am concerned with erosion under or the water freezing during the winter under the cement. what it the best way to configure this? I would like it to be pretty maintenance and trouble free.

Answer
You need to make sure that the oulet of the drain pipe is lower than the inlet, and that the water can drain out of the pipe unimpeded.  If you have this done, you should not have a problem with erosion around the drain.  At the outlet, unles you are tying into a storm drain or something like that, it would be good to have a basin full of gravel or rock for the water to drain into.