I-190 Corridor / Silver Street Interchange Study in Rapid City

Reason for Study:

Given the aging I-190 structures with low clearance at the Silver Street interchange in Rapid City, the South Dakota Department of Transportation has targeted the interchange for replacement. This study is to evaluate options for the future of the interchange, and possibly for the entire I-190 corridor.

Study Limits:

The study will examine the I-190 highway corridor and the influencing arterial and collector roadways. The primary route to be studied follows the I-190 corridor from SD44 (Omaha Street) to I-90, and includes all ramps and ramp intersections along the corridor, emphasizing the Silver Street interchange.

• Map of Study Area

Public Meetings

The South Dakota Department of Transportation (SDDOT) has a long history of public involvement in the development of transportation plans and projects. The 2005 passage of the Safe, Accountable, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) requires a public involvement process. In accordance with the Department's public involvement plan document, the I-190 Corridor / Silver Street Study strives to keep the public involved with the study as much as possible. Public meetings for the study will occasionally be scheduled to collect public input, provide information and answer questions.

Public Meeting #1 - May 27, 2010

• Public Meeting Announcement
• HDR Presentation

Public Meeting #2 - March 29, 2011

• Public Meeting Announcement
• HDR Presentation
• Public Meeting Summary

Public Meeting #3 - September 14, 2011 (Reunión Pública # 3 - 14 de septiembre 2011)

• Public Meeting Announcement
• Anuncio De La Reunión Pública
• Landowner/Residence Invite
• HDR Presentation
• HDR Presentación
• Meeting Display Boards (Reunión Paneles de visualización)
• Comment Card
• Comentario de Tarjetas
• Public Meeting Summary

Public Meeting #4 - June 11, 2013 (Reunión Pública #4 - 11 de junio 2013)

• Public Meeting Announcement
• Anuncio De La Reunión Pública
• HDR Presentation (HDR Presentación)
• Proposed Interchange Layout (Layout intercambio propuesta)
• Public Meeting Handout (Folleto Reunión Pública)
• Comment Card (Comentario de Tarjetas)

Study Documents

• Environmental Assessment and Section 4(f) De Minimis Impact Finding
• Phase I Final Report - No Appendices
• Finding of No Significant Impact - Final Environmental Assessment & Section 4(f) De Minimis Impact Finding
• Summary to 06/11/2013 Public Information Meeting
• Draft Interchange Modification Request
• SDDOT Submittal Letter
• Draft Interchange Modification Report
• FHWA Response to Draft IMJR

Study Technical Memorandums

• Phase 1, Task 100
• Phase 1, Task 200
• Phase 1, Task 300
• Phase 1, Task 400
• Phase 1: Amendment #1
• Phase 2: Special Event Oberservation
• Phase 2: Potential Neighborhood / Philadelphia Street Connections West of I-190
• Phase 2: Traffic Analysis
• Phase 2: Philadelphia Street Connection Alignments
• Phase 2: Constructability Review
• Interstate 190 & Mount Rushmore Road Connection
• Phase 2: Replacement of Existing I-190 Twin Bridges at I-190/Silver Street Interchange

The SDDOT has retained HDR Engineering to perform the study. For more information or comments please contact:

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