urban vegetable garden: grade & subgrade drainage planning
Hello. Newbie here.
I'm trying to revitalize a 12'x16' plot of mildly lead-contaminated (50ppm), compacted clay soil, in the middle of a tiny post-industrial 'backyard'. It's been suggested for obvious reasons that I plant in raised beds. Being fall, though, I'd like to start by focusing on improving grade / sub-grade drainage characteristics, so that the area overall is pleasant to garden in.
I can post or email photos -- ie, if anyone wants to check things out a bit before making suggestions.
Experienced urban gardeners from the Ohio Valley, please show some love.