Wetland technology and englneermg provide the basis for extensive habitat restoration and creation in the United States. This includes habitats that are built without a requirement for regulation, and those habitats built for compensatory mitigation to replace impacted or lost wetlands. Wetlands are diffcult to restore and create due to their being living, dynamic, changing systems. However, the US Army Corps of Engineers and other agencies have been restoring and creating these habitats for over two decades using a variety of means. The Corps has identified, developed, and modified both engineering and environmental techniques and methodologies for accomplishing this work with some degree of predictability and success. Some of these technologies, the state- of-the-science, and some restoration and creation case studies are discussed. Each case study, regardless of the level of success, has provided valuable infomation (lessons leamed) that can be used to carry out future, similar projects.