The purpose of this manual is to provide Geotechnical Engineers guidance to expected procedures when performing geotechnical investigations, analysis, and reporting for the Nebraska Department of Roads (NDOR). This manual is intended to provide general guidelines for the geotechnical duties of a typical project, as each project has unique considerations and requires engineering judgment based on knowledge of an individual situation. Design and construction of roadway projects is complex and involves the contribution of many department units and therefore requires good communication and coordination between the Geotechnical Engineer and other units. This interaction is important in designing a reliable and cost-effective project