Structural Engineering
Strength and Stability, Solutions that Last.
At Interstate Engineering, we provide structurally sound solutions for communities, agencies, and developers across the Upper Midwest. Our team delivers design, analysis, inspection, and rehabilitation services for buildings, bridges, and other critical infrastructure, whether made of concrete, masonry, steel, or timber.
We engineer with durability and safety in mind on a wide range of structures, including highway overpasses, municipal buildings, railroad grade separations, and river crossings. From foundations and reservoirs to multi-span bridge design, we bring technical expertise, regulatory understanding, and practical problem-solving to every phase of your project.
Design with Strength, Build with Confidence.
Partner with Interstate Engineering to bring reliable structural solutions to life.
Services
Site Investigation
Gathering critical data to inform structural feasibility, foundation placement, and site planning.
Studies & Risk Assessments
Evaluating load capacity, alternative analysis, and design feasibility to support long-term performance.
Structural Inspections
Thorough inspections for bridges, buildings, and infrastructure for safety, compliance, and longevity.
Bridge Design & Maintenance
From small crossings to multi-span structures, our bridge work meets state and federal standards for safety and performance.
Rehabilitation & Retrofitting
Cost-effective solutions to extend the life of existing infrastructure while meeting today’s codes and demands.
Residential & Commercial Buildings
Safe, durable, and efficient structures that balance form and function, ensuring stability, compliance, and long-term value
What Our Team Says
Work With Us
1
Assess
We begin with site studies, surveys, and code-based assessments to understand conditions and challenges.
2
Plan
Our structural engineers create clear, compliant designs tailored to material choice, site constraints, and project goals.
3
Inspect & Support
We offer construction observation, maintenance plans, and ongoing rehabilitation services to protect your investment.
