Located on North Fourth Street, new homeowners S…. and L….are constructing a retaining wall.  The wall is constructed of pieces of concrete sidewalks and driveways that they have quarried from around town. They break up the pieces into manageable sizes and lay them in ashlar courses. The walls are reminiscent of the many rock-face concrete block basement walls that are in the neighborhood. And it’s not only pretty sustainable but ranks high in the annals of urban foraging.