Project Presentation
Interchange Project
Public Input

Welcome to the I-29 Exit 130 (20th Street S) Interchange Project

The project involves an Interchange Justification Report, Environmental Assessment, design plans, and right-of-way acquisition for a new I-29 interchange at 20th Street South in Brookings, SD.


Draft Environmental Assessment Released

October 19, 2020

The draft Environmental Assessment (EA) and appendices are available for review and comment.

View the Environmental Assessment

View the Presentation

Comments are due by November 19, 2020.

Website Comments and Responses Posted

June 12, 2020

Comments submitted to the web site and the responses are available for review.

To protect the privacy of those who submitted comments, we are not showing names, email addresses, phone numbers, or specific information about the commenter’s property.

View the comment responses.

Project Partners