South Dakota Department of Transportation US 385 Construction Project Skip to main content

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Feb. 19, 2024

Pre-Construction Informational Meeting Scheduled for March 12, 2024

The South Dakota Department of Transportation (SDDOT) will hold a pre-construction informational meeting to share project details about the U.S. Highway 385 construction project scheduled for 2024-2026. The meeting is scheduled for Tuesday, March 12, 2024, from 4-7 p.m. (MT) at Rimrock Church, located at 12200 S.D. Highway 44 in Rapid City.

The open house-style meeting will be informal, consisting of a pre-recorded presentation and one-on-one discussion with the project team. A recorded presentation will be playing throughout the meeting, and members of the project team will be available with displays to discuss the construction project and answer questions.

The goal of this meeting is to share overall construction phasing plans and share specific information about the 2024 construction season, which begins in March. This construction season will include significant traffic impacts including full road closures.

Individuals needing assistance, pursuant to the Americans with Disabilities Act (ADA), should contact the SDDOT ADA Coordinator (605-773-3540) two business days prior to the meeting in order to ensure accommodations are available. For any in-person meeting, notice is further given to individuals with disabilities that the meeting is being held in a physically accessible location.

For further information regarding this project, contact Tim Wicks via email at For updates on major traffic changes, subscribe to a free text-in service. To subscribe, simply text “US385” to 605-566-4041. Subscribers can unsubscribe at any time.

Nov. 15, 2023

Phase 1 Tree Clearing Begins on Monday, Nov. 27, 2023

On Monday, Nov. 27, 2023, Zandra Construction will begin clearing trees along U.S. Highway 385 from the north side of Pactola Dam to the Pennington-Lawrence County line. Traffic will be controlled by pilot car, and fifteen-minute delays are expected. Drivers are urged to use caution and reduce their speed while traveling through the construction area.

This is a preliminary effort of phase one of the U.S. Highway 385 construction project, which is scheduled to begin in spring of 2024.

UPDATED: Oct. 5, 2023

2024 Construction Highlights

Phase 1 Construction Details

Construction will begin in one year, and the South Dakota Department of Transportation (SDDOT) is conducting stakeholder and public outreach in preparation of spring 2024. The project team held an informational open house on Thursday, April 27, 2023 at Rimrock Church. Stakeholders and members of the public reviewed a presentation and had one-on-one conversations with the project team. The focal point of this event was discussing the upcoming construction of Phase 1, which includes two complete closures, as detailed below.

Closure A:
Boat Ramp to Pactola Dam
Closed May 20-July 12, 2024
*No work from July 31-Aug. 12, 2024 for Rally.
View Map

Closure B:
S.D. Highway 44 to Boat Ramp
Closed May 20-June 7, 2024
Open Memorial Day (Monday, May 27, 2024)
*Road will be open Fridays at noon-Mondays at 6 a.m. for boat ramp access from the north.
View Map

April 7, 2022

Welcome to the Project Website

Welcome to the project website for U.S. Highway 385 Construction. We are happy you're here and look forward to connecting with local communities before, during, and after the project. We are currently finalizing plans for construction, acquiring necessary Right-of-Way (ROW), and preparing to begin stakeholder and public outreach. Bookmark this page to easily return and view updates. To ensure you do not miss any information, sign up for the project newsletter above!