Interstate Engineering is pleased to welcome Sophia Caldwell to the Spearfish office. As a CADD Technician, she joins the team with a Bachelor of Arts degree in Engineering Science from Dordt University. Her knowledge and drive to continue learning will make her a valuable addition to the Interstate Engineering team.

Caldwell, along with the rest of the Spearfish team, can be found at 120 Industrial Drive, and can be reached at (605) 642-4772.