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ADA Curb, Ramp, and Sidewalk Upgrades Scheduled for S.D. Highway 40 in Keystone

For Immediate Release: Friday, March 11, 2022
Contact: Jay Noem, Project Manager, 605-440-1220


KEYSTONE, S.D. – The South Dakota Department of Transportation (SDDOT) says crews will begin ADA curb, ramp, and sidewalk upgrades on S.D. Highway 40 starting Monday, March 14, 2022. The project will begin on the west end of Keystone (Highway 40 section) and run for one mile.


Traffic will be reduced to one lane and guided through the project with the use of flaggers and a pilot car, intermittently throughout the project. Delays of up to 10 minutes can be expected while traveling through the work area during daytime hours. The contractor will be working weekdays only for the duration of the project.


Motorists are advised to travel 25 miles per hour or the posted speed limit if it is less than the advised speed during this timeframe.


The prime contractor on the $791,000 project is Complete Concrete, Inc. of Rapid City. The completion date for the project will be Friday, Dec. 2, 2022.


About SDDOT:

The mission of the South Dakota Department of Transportation is to efficiently provide a safe and effective 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.