Hydraulic Dredging, Lake Excavation, Beach Restoration - Southwind Construction With miles of pipeline ready to be installed and equipped with a variety of dredges and multiple... different types of materials, including fly ash, silt, clay, sand, shell and gravel. In addition to dredging, we have the knowledge and experience to build spoil containment areas. For... reefs, and waste containment, Southwind combines dredging with geotextile tubes. Copyright Southwind Construction Corporation. All Rights Reserved Dredging Beach Restoration Lake Excavation Dewatering ...