This page introduces the Geotechnical Manual, which provides policies and procedures for geotechnical investigation and project development design. It includes the manual's organization and revision history. www.idot.illinois.gov Design Manual Information. The Design Manual is a document that is constantly being updated for various reasons. We recommend that you utilize the electronic version of the Design Manual on the web site.Highway in North Dakota Badlands This will insure you have the latest working copy of the Design Manual. Publication 222 Geotechnical Investigation Manual April 2018 Edition . NOTICE: Before you continue, be sure to . REFRESH . this document to ensure that you are viewing . the most recent Publication 222 information. TO REFRESH: (IE 4.0 or greater), press the F5 key, or click the REFRESH icon on your web . browser's tool bar. Links to current GEOTECHNICAL DESIGN MANUAL Page 4 of 60 6 SEISMIC DESIGN 6.1 GENERAL This chapter describes ODOT's standards and policies regarding the geotechnical aspects of the seismic design of ODOT projects. The purpose is to provide geotechnical engineers and engineering geologists The geotechnical project development and design manual below contains requirements for contract coordination, field investigation and testing requirements for ADOT's development processes: ADOT Preliminary Engineering and Design Manual Geotechnical Manual of Instruction The Geotechnical Manual of Instruction (GMOI) defines the Department's requirements for geotechnical design. The GMOI consists of all sections shown below. Helpful Links. Manual Chapters. Drawings. Checklists. The NDOT Geotechnical Section is organized into two groups. The administration is comprised of two managers, each in charge of one group, and an administrator over the entire Section. One manager oversees three Geotechnical Engineers and the Geotechnical Laboratory, while the other manager oversees two Geotechnical Engineers and the Exploration incorporate GTP comments dated January 3 and 9, 2008, and GDOT comments dated July 18, 2008. The attached summary presents the site and subsurface conditions along the proposed bridge and retaining wall alignments, and our geotechnical recommendations related to foundation design and construction. Review of the boring logs and tests provided by GDOT shows several corrosion test results for soil samples that exceed the thresholds identified in the GDOT Geotechnical manual, Section 9.2.2. Can the Department confirm that the DB team will need to design pile foundations in accordance All Geotechnical Manual User Memos (AGMU) are issued from the BBS Foundations and Geotechnical Unit advising of policy changes prior to the policy's incorporation in the Geotechnical or Subgrade Stability manuals. Special Instructions: AGMU memos are available for download below. To download an individual file to your hard drive click the link