Billy,

I'll offer some thoughts to consider with your idea:

1) Assure that you have stable gound with good drainage.
2) Assure that the two sides of the trough are well anchored to avoid spreading that will cause the raod bed grade to fall.
3) Realize that you will need to add/fluff the ballast from time to time to maintain the grade of the roadbed.

I suggest contacting Mark Fuhrman or Pete Hoke to discuss your idea.

__________________
Bruce (McToots) McElhoe
KAMRI President
and Web Site Moderator