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Engineering
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40+ YEARS
OF EXPERIENCE
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PROFESSIONALS YOU NEED
PEOPLE YOU CAN TRUST

Interstate Engineering has been delivering sustainable, high-performance civil engineering, surveying, and planning services for over 40 years. Our multi-discipline network of professionals can design, contract, and supervise projects throughout the great plains region.

With the economical, social, and technological changes driving the industry, Interstate Engineering continues to be on the leading edge of challenges, finding solutions that fit the needs and budgets of any project and for every client.

SECTORS

Depth of experience comes from a diverse cross-section of market knowledge. Serving public and private clients, listening to their needs, and offering solutions that meet those requirements, our team of experts has experience that is both broad and deep.

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We are part of each community we serve, offer support and truly understand the needs.

Do You Have A
SURVEYING Project
We Can Help With?
OFFICES IN FIVE STATES
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Our wide network of resources ensures that our service produces solutions for your project no matter how big or small, while still leveraging a local know-how.
Our Projects
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take a look at some OF OUR amazing projects
Clear Filters
Jamestown Airport
Hermosa
Fergus Falls Library Expansion
Sidney Circle Water System Improvements
GIS
Rugby Water Treatment Plant Improvements
North Prairie Water District Improvements
Glendive Sidewalk, Curb, & Gutter Improvements
Pioneer Road
A Living Water Model
Growth Continues in Horace
Crestwood Bear Den II Gas Plant
Recent News
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Zach Grapentine PE Post
29 Dec: Zach Grapentine Earns South Dakota Professional Engineer License and Promotion

Zach Grapentine recently fulfilled his South Dakota Professional Engineering License requirements, earning the PE designation by the South Dakota State Board of Technical Professions. Grapentine is a highly skilled engineer focusing on traffic and municipal engineering. He holds a Bachelor of Science Degree in Civil Engineering from South Dakota School of Mines and Technology. Interstate Engineering is also pleased to announce the promotion of Grapentine to Assistant Office Manager for the Spearfish team. “Zach is ideal for the Assistant Manager position as he has a strong desire to learn, sets high standards for himself and others, and wants the entire…

Travis Frey PE post
28 Dec: Travis Frey Earns North Dakota Professional Engineer License

Travis Frey recently completed his North Dakota Professional Engineering license requirements, earning the PE designation. He also received Land Surveyor in Training (LSIT) certification by the North Dakota State Board of Registration for Professional Engineers and Land Surveyors. Frey has 14 years of experience in civil and mining engineering. His specialties include land development, municipal, and stormwater. In addition, Travis has extensive knowledge in various aspects of political subdivisions and government processes. Frey earned his Bachelor of Science Degree in Agriculture and Biosystems Engineering from North Dakota State University and a Master of Business Administration from the University of Arizona….