The 2020 Spec Book update is complete but implementation is on hold until a new publisher is secured. The target date for implementation is July of 2021, but that will be reevaluated once the spec book is published. Project documents submitted until further notice should continue to be in accordance with the 2018 Spec Book.
MnDOT Spec Book
The 2018 edition is effective for most projects let on or after January 26, 2018.
All project documents submitted for the January 26, 2018, letting, or later lettings, must be in accordance with the 2018 Spec Book.
Changes from the 2016 Edition
Vertical change lines have been added to indicate text that has changed from the 2016 Edition. These change lines are intended as a courtesy to the reader, and MnDOT does not guarantee that all text changes are indicated by change lines.
- Change lines are in the in the left and right margins bordering paragraphs with change(s). The change lines border the whole paragraph, even if only one line in the paragraph has changed.
- For tables, each row with change(s) has heavy vertical outside border lines on both sides.
Most pay item numbers were changed to conform to a unit-of-measure based numbering system. However, no change lines were used for this type of change in the pay item matrices.
The 2016 edition is effective for most projects let on or after Oct. 23, 2015 through January 25, 2018.
Change lines were added to the margins of the 2016 Edition to indicate text that changed from the 2014 Edition. The intent of these lines is to help the reader - although MnDOT does not guarantee that all text changes are indicated by change lines.
The 2014 edition is effective for most projects let on or after Dec. 2, 2013 through Oct. 22, 2015. It is in two volumes:
View 2005, 2000 Spec Book editions.
View MnDOT Special Provisions for all trunk highway construction projects.