Founded in 1976, Interstate Engineering provides innovative engineering, surveying, and planning solutions throughout the Great Plains Region. We specialize in sustainable, high-performance civil engineering, surveying, and planning services. Whether a rural community, growing urban area, established water resource district, expanding tribal community, or private developer, our team strives to be the professionals you need, the people you trust.

49th Latitude Land Surveying, LLC, has merged with Interstate Engineering based in Williston, ND, and holds licensing in both North Dakota and Montana.

Surveying Services Include:

• Boundary Surveys
• Topographic Surveys
• ALTA/NSPS Surveys
• Oil/Gas/Pipeline Surveys
• Construction Surveys
• 3D Terrestrial Scan Surveys
• Elevation Certificates