GSD specializes in providing the services our clients ask for and the results they expect. Whether it is rig demolition, channel dredging, piling and shoring, or any aspect of inland or coastal marine construction, we’ve assembled a team that is unrivaled in our industry. We demand strict adherence to the safety programs GSD has developed over the past three decades for the benefit of our customers and the benefit of our employees because safety and efficiency go hand-in-hand.