How do you build an arena with Class I/ Sand

Question

We are building a horse areana for eventing and was wondering what is the best way to build it. We are trying to keep the class I/Sand from eroding from the arena. What barriers can I put up without the class I sand clogging it up. We want it to filter properly to let the water out of it so it can drain

Answer 1

lay down drain pipes underneath, on top of that 3/4" gravel, then 1/2" gravel, then course sand, then your class I sand. gotta do that stuff in layers.there will always be some sand escaping, but this should make it very maintainable.