Braddock Farms, one of the largest projects run by the non-profit Grow Pittsburgh, is a farm run on a stretch of vacant lots on one of the main streets of the suburb of Braddock.  It sits in the shadow of the last steel mill in Braddock, a town that has lost 90% of its income and population. The area is dotted with overgrown vacant lots, and the mayor, an enthusiastic supporter of the local food movement, hopes to turn them into useful growing spaces.  The existing farm is now in its second full growing season.