Missouri Standard Plans for Highway Construction

2021 Missouri Standard Plans for Highway Construction


The standard plans book contains material, equipment and construction requirements for items specified in the construction of Missouri's transportation infrastructure.


The exclusive purpose of this electronic publication is to provide information as a convenience to those who access it. MHTC and MoDOT do not intend for the information contained herein to form a contract with any person, nor shall any of this information be relied upon by any person as forming a part of any contract. The published content of the Missouri Standard Plans for Highway Construction July, 2021 Edition, as it has been revised by subsequently published revisions, General Special Provisions or Job Special Provisions of the bidding and contract documents for a particular project shall always control over the information provided in this electronic publication.

Viewing Information

The standard plans are presented in two separate formats for viewing and use. A detailed image of each drawing can be viewed and printed directly through use of the Adobe Acrobat Reader. If you do not already have the Acrobat Reader installed on your computer, it can be downloaded free of charge, through the link provided below.

Free Acrobat Reader Download

Each standard plan is also available in the format and can be downloaded for use on Microstation.

If you wish to be notified when revisions are posted to this site, please sign up for E-Update notices by clicking here. To receive notices regarding Engineering Policy Revisions, select Engineering Policy then mark the appropriate subjects of interest.

2021 Missouri Standard Plans for Highway Construction Files

2021 Missouri Standard Plans for Highway Construction

Standard Plans Book (One PDF file)


Design Letter

Effective Letting Date

Standard Plans as of April 2022

April 2022 Supplemental Revision


April 1, 2022

Standard Plans as of January 2022

Jan 2022 Supplemental Revision


January 1, 2022

Standard Plans as of October 2021

Oct 2021 Supplemental Revision


October 1, 2021

Standard Plans as of July 2021



July 1, 2021

For complete set of Standard Plans effective prior to July 1, 2021 use link in Archive table.

Individual MicroStation and PDF files:

The files below contain the quarterly publications to the Standard Plans by Section.

2021 Missouri Standard Plans for Highway Construction with Supplemental Revisions Incorporated


Effective Letting Date

Currently Effective Standard Plans for Highway Construction

April 1, 2022

For technical support, questions or errors please contact Duke.Leggett@modot.mo.gov


The documents are provided in Acrobat Reader format. Free Acrobat Reader download