Civil and environmental engineers design, construct, and maintain the built environment in which we live and work. Projects range from the tallest skyscrapers and soaring bridge spans to tunnels and underground structures. We manage scarce water and groundwater resources, and we design and operate systems to protect public health, water quality, and the environment. Gentek use modern materials and system analysis methods to manage and renew the civil infrastructure. Computing and information technology tools make it possible to sense the condition of the infrastructure, and then to communicate and rapidly respond to disruptions in normal operations. High-performance computing is using to simulate the behavior of complex civil systems, visualize the results, and optimize management strategies