This industry comprises establishments, not classified to any other industry, primarily engaged in constructing heavy and civil engineering works. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to these civil engineering construction projects (such as marine pile driving) are included. Construction projects involving water resources (e.g., dredging and land drainage), development of marine facilities, and open space recreational construction projects (e.g., parks and trails) are included in this industry.