Foundation 2 topics · 2 sources ScienceEnergyThe supportive structure of a building.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite ScienceWaterLower part of a structure that transmits loads directly to the soil. The excavated surface upon which a dam is placed. Bureau of Reclamation — Bureau of Reclamation Glossary Cite