A specialty classification that involves the construction, whether from earth, masonry, steel or concrete, or any combination of these materials, of dams, levees, and reservoirs designed to obstruct, control or use water, or otherwise regulate water levels and control flooding. The scope of work includes the relocation of existing structures, any necessary excavation and the construction of embankments, foundations, piles, piers, spillways, tunnels, roadways and other incidental work. This classification also includes construction and repair of a levee or dike to regulate water levels and control flooding.