Full road closure in place Monday, Oct. 20, 2025, through Friday, March 6, 2026. Use alternate route. Click here to learn more.
Highway 385 Construction Pennington-Lawrence County Line to Sheridan Lake
The South Dakota Department of Transportation (SDDOT) is reconstructing a portion of Highway 385 between the Pennington-Lawrence county line and the south end of Sheridan Lake. Once completed, this section of Highway 385 will feature safety improvements, including wider shoulders on each side of the road where possible, improved road curves to meet current design standards, additional turning lanes to improve traffic flow, and new surfacing. Learn more about this project by watching this presentation.
Click on image to enlarge.
Approximately 15 miles of Highway 385, from Calumet Road (near Sheridan Lake) to the Pennington-Lawrence County Line in South Dakota, is planned to be reconstructed from 2024 through 2026. Construction of Highway 385 is split into sections that will be completed over three years. The northern segment, which runs from Pactola Dam to the Pennington-Lawrence County Line, was under construction in 2024 and will be back under construction for final surfacing will resume from spring to summer 2025. The southern section, which runs from the southern point of Sheridan Lake (Calumet Road) to Pactola Dam, is expected to be under construction in 2025 and 2026.
Construction Timeline
Construction began in the spring of 2024 and is anticipated to be completed in the fall of 2026. For further updates, please visit the Construction Updates page.
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2023
Community & Stakeholder Outreach -
2024
Phase 1 Construction
(Pennington-Lawrence County Line to Pactola Dam) -
2025
Phase 1 Surfacing & Phase 2 Construction
(Pactola Dam to Calumet Road near Sheridan Lake) -
2026
Phase 2 Construction
(Pactola Dam to Calumet Road near Sheridan Lake) -
2027
Phase 2 Surfacing
What to Expect
Click on image to enlarge.
Phase 2 Construction
Spring 2025 to Fall 2026
What to Expect during Construction:
- Pilot car lines and wait times
- Rock blasting
- Loose gravel road surface
- Narrowed driving lanes
- Large construction equipment
- Temporary road closures
Closure C - Sheridan Lake Road to Be Still Road
August 12 to September 2, 2025
Closure D - Be Still Road to Calumet Road
April 28 to June 13, 2025
Local access to Be Still Road will be maintained
Closure E - Pactola Dam to Taylor Ranch Road
October 20, 2025 to March 6, 2026
Local access to Victoria Lake Road and McCurdy Gulch Road will be maintained
The detour for these road closures will be S.D. Highway 44 and U.S. Highway 16, as show in yellow below.
Click on image to enlarge.
Construction Updates
January 23, 2025
Closure E (Pactola Dam to Taylor Ranch Road) is currently in place and ends on Friday, March 6, 2026.
Read MoreDecember 12, 2025
Closure E (Pactola Dam to Taylor Ranch Road) is currently in place and ends on Friday, March 6, 2026.
Read MoreNovember 28, 2025
Closure E (Pactola Dam to Taylor Ranch Road) is currently in place and ends on Friday, March 6, 2026.
Read MoreSDDOT is dedicated to working with communities and keeping the public informed during road construction projects.
