Geotechnical Design Bulletins

GDB #	Original Issue Date	Latest Revision Date	Title
2018-1	December 2018	None	2019 Geotechnical Design Manual version 2.0 (GDM v2.0)
2019-1	October 2019	None	Management of Geotechnical Design Data
2019-2	December 2019	None	Corrections and Additions to 2019 GDM
2019-3	December 2019	None	Corrections and Additions to 2019 GDM
2019-4	December 2019	None	Revision to Chapter 13
2020-1	March 2020	None	Revisions to Chapter 22 and Chapter 24
2020-2	July 2020	None	Revision to Chapter 7
2020-3	October 2020	None	Revision to Chapter 12 and Appendix 12
2020-4	December 2020	None	Revision to Chapter 5
2020-5	December 2020	None	Revised MSE Wall (Panel Face) Drawings
2021-1	January 2021	None	Various Changes
2022-1	May 2022	None	2022 Geotechnical Design Manual
2022-2	May 2022	None	2022 Geotechnical QA_QC Checklist
2022-3	August 2022	None	GDF 001 Bridge Load Data Sheet Update
2023-1	March 2023	None	Geotechnical QA Checklist Update – 2022 GDM
2023-2	June 2023	None	Updates to Sections 4.2.1 and 13.6.1 – 2022 GDM