Signed originals of the following memos are filed in the Helena Construction Office. The construction memos are listed by year and topic. They open in PDF format. Each memo is searchable, and text within the memo can be copied and pasted.

Memo Title	Effective
2023 Memos
Project Dates	05/26/23
Construction Detours and MCS Over-width Permits	02/28/23
Construction Non-uniformity Complaint Form	01/23/23
2022 Memos
Subcontract Requirements	12/03/21
2021 Memos
Motor Carrier Services Construction Guide	09/27/21
Buy America Training and Webpage	08/01/21
Construction Claims Process	06/17/21
Buy America Guidance for Rebar	05/01/21
Finalization Process	05/01/21
Value Engineering Proposals	04/05/21
2020 Memos
Service Connections Utility Coordination Procedure Guidelines	08/17/20
COVID19	03/23/20
Seed Acceptance Method	01/23/20
2019 Memos
Traffic Control Plastic Drums	07/11/19
Truck Speed Limit Change	06/11/19
2016 Memos
No active memos
2015 Memos
Evaporation Retarders	10/05/15
Materials Certifications	04/27/15
2014 Memos
No active memos	10/01/13
2013 Memos
No active memos
2012 Memos
Traffic Control Engineer Position	04/02/12
2011 Memos
No active memos
2010 Memos
Crosshole Sonic Logging Testing Requirements	08/20/10
Traffic Control Documentation	08/20/10
Contractor Flagging Requirements	05/20/10
2009 Memos
Seal Coat	10/05/09
Pile Driving Logs	05/18/09
Mass Diagrams and Shrink/Swell Factors	04/06/09
2008 Memos
Guidance for Reporting Potential Erosion and Sediment Discharges	06/05/08
Final Materials Certification Process	05/09/08
Project Dates	05/06/08
Specification Revision Process	05/05/08
Force Account	03/31/08
Site Manager WAQTC Training Requirements	02/22/08
Guidance for Informal Post Construction Review Reports	02/06/08
2007 Memos
Seal Coat Revisions	12/19/07
Construction Jobsite Safety	07/31/07
Contractor Relations and Access to MDT Test Trailers and Laboratories	06/25/07
Construction Trailer Move Procedures	06/18/07
International Roughness Index (RI) Testing	06/07/07
Material Certifications	02/13/07
Buy America Database - Guardrail	01/29/07
2006 Memos
Density Acceptance by Cores	10/03/06
Significant Changes in the Character of Work	06/09/06
Moisture Requirements for Compaction	04/10/06
Retaining and Retesting Density Cores	01/06/06
2005 Memos
Guidance on the use of Type 2 Object Markers and Portable Vertical Panels	08/15/05
Review Process for Crashworthy Requirements for Work Zone Devices	08/05/05
Temporary Traffic Control Signals Guidance	05/05/05
2004 Memos
Quality Assurance	03/10/04
2003 Memos
Process for Estimating Earthwork Quantities For Progress Estimates	12/03/03
Acceptance of Reinforced Concrete Products, and General Culvert Construction Considerations	08/25/03
Density Acceptance on Pulverized Plant Mix Surfacing	08/22/03