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Access the old Manual. Note: this version is not being updated.

NOTICE: Minnesota Stormwater Manual and Minimal Impact Design Standards (MIDS) Workshops. Four workshops, each 4 hours in length, will be offered. Workshop locations include Brainerd (April 24), Mankato (May 1), St. Paul (May 7 and 8) and Duluth (May 15). Workshop agendas will be tailored to each audience (a survey will be sent to participants in advance of the workshop). If interested in attending, email Anne Gelbmann ( with your preferred location. Seating is limited.

Welcome to the Minnesota Stormwater Manual website. The Manual is designed to be user-friendly and flexible to guide users directly to the information they need, depending upon the question they need to answer or Best Management Practice (BMP) they need to design. This website was developed in an interactive wiki format to make it easy for the user to get to the subject of interest and to move between subjects.

You can access the Manual Table of Contents by clicking on the link below.

Enter Stormwater Manual: Table of Contents

Information: New to the manual wiki website? Please read

What's new - Recent updates

To view recent content changes or anticipated changes in the near future, see What's New (left toolbar). The What's New page only contains important changes or notifications and will therefore be updated infrequently.

Submitting comments on the website

To submit feedback,scroll down to Help improve this page, located at the bottom of any given page in the website. Type your comments in the text box and submit. We will attempt to provide comments to technical questions. To see responses, click here. By posting, you agree to transparency under these terms.


This Manual was initiated by the Minnesota Stormwater Design Team, which evolved into the Minnesota Stormwater Steering Committee (SSC). Manual production was directed by the SSC’s Manual Sub-Committee (MSC). A listing of contributors and participants in the process appears in the Acknowledgements section.

Guidance on use of the website

For new users of this website, we have provided Guidance on how to use this website and the Manual.


Throughout the production of the Manual, one singular goal was kept in mind – to produce a useful product that helps the everyday user better manage stormwater. The purpose, goal, vision and tenets were developed by the original Stormwater Design Team. Although stormwater management to control the pollution of receiving waters has been around in earnest for over 30 years in Minnesota, the advent of many new programs means that guidance is needed more than ever. Such programs as the NPDES (National Pollutant Discharge Elimination System) Phase I and II program, the TMDL (Total Maximum Daily Load) program, and strong runoff control programs at the local and watershed levels have all contributed to the need for this information to be compiled in a comprehensive, technically sound document.

The directive the Manual Sub-Committee received from the SSC was to produce a document that could be used as a single source to guide stormwater managers through the maze of regulations, Best Management Practices (BMPs) designs, models/techniques and terminology that constitute good stormwater management. It does not address the requirements of other non-stormwater related regulatory programs that can have an effect on stormwater. Related to this was the charge to produce a Manual that does not duplicate the many good sources of information already available. Because Minnesota is fortunate enough to have had many additional tools created over the years, the Manual will often forego detailed explanation of a particular element and send the user directly to another resource via electronic linkage or cited reference. These linked resources provide information that Minnesota stormwater managers can put to use in conjunction with this Minnesota Stormwater Manual. The Manual is intended to be flexible, easily updated and responsive to the needs of the Minnesota stormwater community.