I-229 CORRIDOR STUDY

The I-229 Major Investment Corridor Study will analyze existing and future conditions along the entire I-229 corridor, service Looking southwest along I-229 between 18th St and 26th Stinterchanges, and crossroads, assess the impact on the transportation system, determine feasible solutions to those impacts, and prioritize a list of recommendations that will maximize the efficiency of the corridor.  The study will fulfill the following objectives:

  1. Complete a traffic level of service analysis for both existing and future (2035) no-build conditions on the I-229 mainline, select interchanges and crossroads.

  2. Complete a safety analysis of I-229 mainline, interchanges and crossroads.

  3. Identify locations on I-229 not in compliance with current design standards under both the current and future traffic conditions.

  4. Determine the effects of incidents on traffic operations within the I-229 corridor’s area of influence.

  5. Develop a long range plan consisting of feasible solutions to address the portions of the Interstate System that fail to meet traffic level of service expectations and/or that have identifiable safety concerns under both the current and forecasted future traffic conditions.

  6. Create final products for use by the South Dakota Department of Transportation and coordinated agencies which will serve as a guide in the implementation of recommended improvements that will maximize the efficiency of the system.

The following link will provide information as to which of the sub-study alternatives have been eliminated from further study.
I-229 Corridor Study

Click to view full-size map | I-229 Major Investment Corridor Study Area

Through the course of this project, the study team will depend on the public to help us achieve our goals.  The study team will allow for several opportunities for discussion and feedback through public meetings, small group meetings, website comments, website surveys, and many other means of communications. This project will be a collective effort in preparing Sioux Falls for the growth that is sure to come.

HDR Team Member

Responsibility

Steve Hoff

Project Principal

Dave Meier

Project Manager

James Unruh

Benson Road Interchange Study Team Leader

Brian Ray

I-229 Corridor Study Team Leader

Chris Malmberg

Arrowhead Parkway (10th Street) Interchange & Corridor Study Team Leader

*Ross Harris

Minnesota Avenue Interchange Study Team Leader

Jason Kjenstad

Public Involvement Team Leader

Courtney Sokol

Traffic Planning Lead

Rick Laughlin

Traffic Operations Lead

Additional Teaming Partners:

HR Green – Minnesota Avenue Interchange Study*
Citilabs – Traffic Modeling – Colby Brown
Airsage – Origin/Destination Study – William King

A Study Advisory Team has been formed to guide the study through completion.  The Study Advisory Team is comprised of representative parties of the South Dakota Department of Transportation, Federal Highway Administration, Sioux Falls Metropolitan Planning Organization, South Dakota Highway Patrol, Citizens, and City of Sioux Falls.  Members of the Study Advisory Team are:

Team Member

Organization

Shannon Ausen 

City of Sioux Falls Project Manager

Christina Bennett

South Dakota Department of Transportation – Operations Support

Jeff Brosz

South Dakota Department of Transportation – Transportation Inventory Management

Nicole Frankl

South Dakota Department of Transportation - Project Development (Safety)

Joel Gengler

South Dakota Department of Transportation – Right of Way

Amber Gibson 

Sioux Falls Metropolitan Planning Organization

Kevin Goeden 

South Dakota Department of Transportation – Bridge Design

Steve Gramm 

South Dakota Department of Transportation Project Manager – Project Development

Heath Hoftiezer 

City of Sioux Falls – Public Works

Mark Hoines

Federal Highway Administration

Dave Huft 

South Dakota Department of Transportation - Research

Bruce Hunt

Federal Highway Administration

Scott Jansen 

South Dakota Department of Transportation – Mitchell Region

Captain Kevin Joffer

South Dakota Highway Patrol

Rick Kiley

Sioux Falls Metropolitan Planning Organization – Citizens Advisory Committee

Terry Keller

South Dakota Department of Transportation – Project Development

Pete Longman 

South Dakota Department of Transportation – Road Design

Ron McMahon

Federal Highway Administration

Paul Nikolas

South Dakota Department of Transportation - Road Design

Brad Remmich 

South Dakota Department of Transportation – Project Development

Craig Smith

South Dakota Department of Transportation - Mitchell Region

Additional team members may be added as the study progresses.