Call us today at 573-346-3468 for a FREE Estimate! Parking Lots, Foundations, Driveways, Sidewalks, Retaining Walls, Swimming Pools, Sea Walls, Patios and more. If it's concrete, Clark's can do it! Grading, Excavation for Utilities, Dirt Work, Land Clearing, Demolition, Excavation of Footings, Foundation Excavation, Rock Spreading and more!