Geological engineering integrates two disciplines—geology and engineering. Geologists study the Earth—its origins, its composition, and its evolution. Engineers apply scientific principles to practical ends, such as the sustainable design and construction of facilities and infrastructure, the environmentally responsible extraction of resources, and the use of geo-systems for the generation of alternative energy. Geological engineering is interdisciplinary, with faculty from the College of Engineering and the College of Letters & Science.<br><br>Geological engineers find responsible ways to use the Earth's resources to address engineering challenges while protecting the environment. They solve a variety of practical problems associated with rock and soils using principles of sustainable engineering. They design and construct underground and foundation systems, transportation facilities, dams, tunnels, and power plants. They mitigate natural hazards such as floods, landslides, and earthquakes, and develop safe and environmentally sound sources of energy and minerals. Geological engineers also manage groundwater and surface water resources to ensure the public has access to safe drinking water. They also design and construct subsurface repositories for waste disposal and remediate contaminated sites.