DOT - South Dakota Department of Transportation
09/28/2026 | Press release | Distributed by Public on 09/28/2026 07:59
Road Closure Scheduled on U.S. Highway 16A in Keystone
Road Closure Scheduled on U.S. Highway 16A in Keystone
For Immediate Release:
Monday, Sept. 28, 2026
Contact:
Isaac Schulz, Project Engineer, 605-981-5089
KEYSTONE, S.D. - Beginning Monday, Oct. 5, 2026, U.S. Highway 16A in Keystone will be closed at the intersection of U.S. Highway 16A and S.D. Highway 40 for a bridge replacement project. A detour for the closure will be provided.
Traffic will be controlled with temporary traffic signals during the closure. A 12-foot width restriction and 50-foot length restriction will be in place for the duration of the closure. Highway 16A is scheduled to be reopened by April 2027.
The primary contractor for this $2.2 million project is Complete Concrete Inc. of Rapid City, SD. The overall completion date is Friday, May 21, 2027.
Featured Project Page:
Find additional information, construction timelines, and project maps on the SDDOT website at https://dot.sd.gov/16a-keystone.
About SDDOT:
The mission of the South Dakota Department of Transportation is to provide a safe and efficient public transportation system.
For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, please visit https://sd511.org or dial 511.
Read more about the innovative work of the SDDOT at https://dot.sd.gov.
-30-
DOT - South Dakota Department of Transportation published this content on September 28, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on September 28, 2026 at 13:59 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]