I-90 Exit 387 (Hartford)
Interchange Modification Study
and Environmental Review

The South Dakota Department of Transportation (SDDOT), City of Hartford, Sioux Falls Metropolitan Planning Organization (MPO), Minnehaha County, and Federal Highway Administration (FHWA), have identified a need to study the 1-90 Exit 387 interchange. The study includes an Interchange Modification Justification Report (IMJR) and associated environmental investigation.


Learn about the study area, process, and study expectations that will guide the development of the project alternatives.


Study Documents

Documents developed during preliminary research, analysis, visioning, and community input will be provided for review and input.

Study Documents

Get Involved

You can get involved by reviewing the project overview and study documents, attending the public meeting, then submitting comments to the study contacts.

Learn More

Get Involved

Public Meeting #1 Materials Now Posted

Public Meeting - Thursday, June 28, 2018

Join us at the public meeting for a presentation which will be held at the
Hartford Area Fire & Rescue Station (305 South Street, Hartford, SD 57033).

Open House 6:00pm - 7:30pm | Presentation 6:10pm

The South Dakota Department of Transportation (SDDOT) in conjunction with the City of Hartford, Minnehaha County, and the Sioux Falls Metropolitan Planning Organization (MPO) will hold an informal, open house style public meeting to discuss and receive public input on the upcoming I-90 Exit 387 Interchange Modification Study and Environmental Review.  

Study Area

The study area for this project includes the I-90 Exit 387 interchange and the Western Avenue corridor between Mickelson Road (260th Street) and 261st Street. Objectives of this public meeting include:

  • Present an overview of the study, timelines, and study expectations
  • Present a draft project Purpose and Need
  • Gather public feedback regarding current issues and needs for improvement within the study area

Input from this meeting will aid in the upcoming development and evaluation of Exit 387 and Western Avenue alternatives that will be presented to the public later this year.

Meeting Info

Notice is further given to individuals with disabilities that this open house/public meeting is being held in a physically accessible place. Any individuals with disabilities who will require a reasonable accommodation in order to participate in the open house/public meeting should submit a request to the department’s ADA Coordinator at 605-773-3540 or 1-800-877-1113 (Telecommunication Relay Services for the Deaf). Please request the accommodations no later than 2 business days prior to the meeting in order to ensure accommodations are available.

Written comments for this first public meeting will be accepted until July 12, 2018, and may be submitted at the public meeting, through the website, or directly to one of the study contacts listed below.

Contact Form

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