In the News

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I-90 – Exit 14 – Traffic Switch on 27th St North of I-90
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For Immediate Release: Thursday, July 13, 2017

Contact: Adam McMahon, 605-892-2872


SPEARFISH, S.D. – The South Dakota Department of Transportation says that traffic is scheduled to be switched to the newly completed southbound 27th Street lanes north of I-90 today, July 13, 2017. 

This is being done so the contactor can begin work on reconstructing the northbound 27th Street lanes.

Motorists are asked to slow down through the work zone, be on the lookout for flaggers, be prepared for suddenly slowing, merging and stopped traffic, and construction workers and equipment entering, exiting, and adjacent to the roadway.


Heavy Constructors, Inc., of Rapid City is the prime contractor on this $28 million project. The overall completion date for the project is June 1, 2018.


Road construction information for this project can be found at the following locations as it becomes available:


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