I-29 Exit 86 Renner/Crooks Planning StudyContact Us
Contact Us Submit comments and questions to the project team using this form.
The South Dakota Department of Transportation (SDDOT) and its partners are studying Exit 86 on Interstate 29 to determine what modifications might be needed at this interchange to accommodate future growth and traffic volumes.
Planning Study Goals
- Develop an Interchange Modification Justification Report for the Federal Highway Administration
- Create Environmental Screen Report and National Environmental Policy Act documents for future planning
- Provide guidance to implement recommended improvements for future construction
The project teams will be analyzing two interchange examples that were identified in the SDDOT 2020 Decennial Study. Additionally, up to two additional options will be identified and analyzed as part of the study.
Option 1: Bridge Widening and Turn Lanes
Option 2: Single Point Urban Interchange (SPUI)
Interchange modifications require various studies and screening reports. This project begins with data collection and analysis to help us develop and refine modification options. Next is the development of the Interchange Modification Justitification Report (IMJR) and Environmental Screening Report (ESR). A more detailed Environmental Analysis occurs during the National Environmental Policy Act (NEPA) process. Lastly, an interchange design is finalized. This design will kick-off the construction phase of this project.
Data Collection & AnalysisSpring/Summer 2022
Public & Stakeholder MeetingsJuly 2022
Develop & Refine Build OptionsSummer 2022
Draft IMJRFall 2022
Public & Stakeholder MeetingsFall 2022
Submit Final IMJRFall/Winter 2022
Submit Final ESR
Draft NEPAWinter/Spring 2023
Submit Final NEPASpring/Summer 2023
Design: Anticipated 2024-2028
Construction: Anticipated 2029
Check back for upcoming public information meetings and open house events.
Public & Stakeholder meetings
July 27, 2022
5:30 - 7:00 p.m.
Jefferson High School
1600 N Marion Road
Sioux Falls, SD 57105
Past Event Materials
Public Meeting #1 (July 27, 2022)View the meeting boards
The comment period for this meeting is open