50 Years Strong! Join Interstate Engineering in Celebrating Our Anniversary. Watch the Video Here.

Welcome our interns with us!

Meet our interns Lucas Finders School info: Civil Engineering at the University of Mary – First Year/Freshman Office: Williston Internship info: What project or type of work are you most excited to experience? Anything out in the field. What’s been your favorite part of the internship so far? Getting to experience each individual role on the team. […]

DeVillers Named as Prairie Business Leaders & Legacies

Recognized as One of the Area’s Outstanding Leading Professionals Please join us in congratulating Damon DeVillers from the Wahpeton office on being recognized with the Leaders & Legacies award by Prairie Business. With nearly four decades of service at Interstate Engineering, Damon has built a legacy of leadership, mentorship, and community involvement that has positively […]

Welcome Dan Tweten to the Jamestown Office!

Interstate Engineering is excited to welcome Dan Tweten, Chief Resource Officer! Tweten earned his Master’s degree in systems engineering from Stevens Institute of Technology and brings nearly 30 years of experience in systems engineering and team leadership. “Chief Resource Officer is a new role for Interstate Engineering, but the purpose behind it is clear,” said […]

Rachel Laqua Receives Top 25 Women in Business

Laqua Recognized as One of the Area’s Top 25 Women in Business  We are thrilled to announce that Rachel Laqua, AICP, our Planning Director from our Williston office, was recently named to Prairie Business’s Top 25 Women in Business. The Top 25 recipients come from diverse industries and backgrounds, each blazing new trails and making […]

Fisketjon Earns Commercial Building Inspector License

Congratulations Chris Fisketjon, Project Technician in the Mandan office, for passing the IBC Exam! The International Building Code (IBC) exam is critical for professionals in the building and construction industry who seek to demonstrate their knowledge of commercial building codes. Passing this exam requires thorough preparation, a solid understanding of the IBC, and effective test-taking […]

Hatting Named 40 Under 40 Recipient

Interstate Engineering is thrilled to announce that Zach Hatting, a Project Manager & Office Manager at our Wahpeton office, was recently recognized as a 40 Under 40 honoree by Prairie Business. The 40 Under 40 recipients come from various industries and backgrounds, each blazing new trails and making outstanding contributions to their professions. Zach began his […]

Interstate Engineering Acquires TerraSite Design

Team of people standing together

Interstate Engineering announced today that it acquired TerraSite Design, a civil engineering, landscape architecture, and planning company located in Rapid City, South Dakota. This acquisition represents a key step in Interstate Engineering’s strategic growth across South Dakota, building upon its established office in Spearfish. Lonni Fleck, Interstate Engineering CEO, said, “After 49 years of business, […]

Bedwell Earns PE

Interstate Engineering is thrilled to announce that Kaden Bedwell, from our Fort Peck office, recently obtained his Professional Engineering license in Montana. Kaden started interning with us in the summer of 2015 and was hired in 2017 after graduating with a bachelor’s degree in civil engineering and general engineering with a minor in math from […]

Lindbloom Earns PE

Interstate Engineering proudly announces that Tyler Lindbloom has achieved his Professional Engineering license. Tyler has been an integral part of the team since joining Interstate Engineering in 2020, and this new credential marks a significant milestone in his professional journey. A graduate of Montana Technological University with a Bachelor of Science in General Engineering and […]

Mayer Named 20 Under 40 Recipient

Interstate Engineering is thrilled to announce that Jordan Mayer, a Professional Engineer, Project Engineer, and Office Manager from our Sidney office, was recently recognized as a 20 Under 40 honoree by the Sidney Area Chamber of Commerce and Agriculture. The 20 Under 40 recipients come from various industries and backgrounds, each blazing new trails and making […]