How can i build a tunnel?

Question

im thinking it should be around 30 feet long by 5 feet wide with abouy a foot of dirt above. should it be more? also wat if it rains? how can i build supports, and how far apart should they be?

Answer 1

What are you planning THE GREAT ESCAPE.

Answer 2

rawrmofo,

I think you should check out a book on the subject, or even search some internet sites for general info.  If you only plan for a foot of dirt on top of the tunnel, you'll have lots of sunshine in no time!

good luck