This important site contains a report which summarizes Federal Highway Administration (FHWA) geotechnical research and development activities over the past 25 years. The report's author is Al DiMillio, and it is divided into seven chapters, some concluding remarks, and four appendices. The chapters cover material related to road construction and detailed maintenance and strengthening projects. Each chapter provides a background essay on the subject, along with information about each project and technical material on the ways in which each project was successfully completed. Visitors can navigate the work by subsections as well, and they will also want to look over the appendices, which give detailed histories of previous works on this subject.