I-229 EXIT 9 (BENSON ROAD) INTERCHANGE OPTIONS STUDY
Benson Road will soon be seeing development east of I-229 with the expansion of the Bahnson Avenue corridor. Prime land for development from Benson Road to 60th Street North has attracted industrial and commercial attention. With the plans for additional traffic on the east side of I-229, concerns with long term congestion at Benson Road and I-229 are becoming reality. For years, traffic levels east of I-229 have been low causing the interchange to operate with little delay even though the interchange sees a significant amount of the traffic in the a.m. periods of the day with users heading to the Industrial and Commercial Parks between Minnesota Avenue and I-229. Benson Road is also planned to expand to the east across the Big Sioux River and eventually connect to the proposed SD 100 corridor. This study will help determine the feasibility of that connection and potentially when it would be required.
In 2013 and 2014, a study will be conducted to determine ways to:
Improve traffic operations on Benson Road in the vicinity of the Interchange along with reducing delay on the Interchange ramp terminals.
Provide pedestrian connectivity along Benson Road.
Determine if options are available that would allow additional interstate access at 60th Street North in conjunction with Benson Road.
Prepare Benson Road for development east of I-229.
Improve intersections along Benson Road to reduce delay and improve safety.
A few things are going on right now: The study advisory team has identified a need to add Exit 7 (Rice Street) as Sub-study 5 and Exit 4 (Cliff Avenue) as Sub-study 6. Based on the initial findings additional study is required to determine what future improvements may be needed at those locations. We are also working on a higher level safety evaluation on the build alternatives that are still being considered for the sub-studies. As a result of the added sub-studies and the detailed safety analysis, the next public meeting will be delayed until the summer of 2016, when preliminary alternatives for Rice Street and Cliff Avenue will be presented. The next overall public meeting for all sub studies will take place late fall/early winter 2016, continue to check the website for updates. The following links will provide information as to which of the sub-study alternatives have been eliminated from further study.
Based on feedback from our December 2014 small group/business owners meetings, we have generated and then refined concept improvement options throughout the I-229 corridor. These concept improvement options are intended to accommodate future traffic volumes, at least to our year 2035 planning horizon.
The concept improvement options have been reviewed by the project Study Advisory Team and will be presented at our June 1 and 2 public meetings. We look forward to your feedback on these concept improvement options at these meetings or via responses to this web site. The concept improvement options will be posted on the web site on June 3, 2015.
Updated May 22, 2015
The I-229 Major Investment Study team will begin investigating interchange improvements along I-229 and corridor improvements on Minnesota Avenue, 10th Street, and Benson Road in the vicinity of I-229 starting in October, 2014. At our initial public meeting in October, 2013, we discussed using specialized modeling software to complete “Dynamic Traffic Assignment” (DTA) which would provide the most accurate means for us to observe how different alternatives being studied would impact traffic on specific corridors adjacent to I-229 or I-229 itself.
The DTA model is complete and is ready to be used to screen the alternatives that our team, and you as stakeholders, helped us generate as we work through alternative development phase. Looking back on the previously provided schedule, our team was optimistic that the process to develop and construct this complex model would take far less time. In reality, this model development phase took significantly more time than anticipated. We want to share the good news that the DTA model is complete and we can continue moving forward on the study tasks important to all of us.
Moving forward, we are identifying mid winter for small group/business owner meetings and late winter / early spring for our next public meeting. Meeting invitations will be sent out for all upcoming meetings. The small group/business owners meetings will be specific to the Minnesota Avenue, 10th Street, and Benson Road corridors, with one meeting held for each corridor. This will allow for feedback on improving safety and ideas for managing congestion. Thank you for your patience and our team looks forward to seeing you soon.
Updated Oct 3, 2014
Click to view full-size map