Business Details
50+ Years
experience
Your Trusted Engineering Partner for Infrastructure Solutions
At D R Griffin & Associates, we are driven by a passion for engineering excellence and a commitment to improving communities through innovative infrastructure solutions. With 85 years of experience in the industry, we have evolved from a small regional firm into a nationally recognized leader in engineering services. Our employee-owned structure fosters a culture of accountability, collaboration, and continuous growth, ensuring that every project reflects our core values of safety, integrity, and client satisfaction. We specialize in delivering tailored engineering solutions across aviation, transportation, environmental, and public works sectors, combining technical expertise with deep local knowledge. Our team of seasoned professionals leverages cutting-edge technology and proven methodologies to address complex challenges, from small-scale municipal projects to large, multi-state infrastructure initiatives.By prioritizing sustainable practices and forward-thinking design, we aim to create lasting value for clients and communities alike. Our reputation as one of Engineering News-Records Top 500 Design Firms underscores our dedication to quality and innovation. Whether supporting economic diversification strategies or constructing critical transportation links, we approach every project with the same mission: to engineer progressive infrastructure that enhances quality of life for future generations. Through strategic partnerships and a client-centric philosophy, we ensure that every engagement delivers exceptional results. As we continue to grow, our focus remains on fostering meaningful relationships, empowering our team, and reimagining whats possible in engineering.
Services
Aviation
Structural
Environmental
Power
Telecommunications
Survey
Right-of-Way
Transportation
Public Works
Water
Details
- Year established: 1938
Highlights and features
- We offer 85 years of engineering expertise across diverse infrastructure sectors.
- Our employee-owned structure ensures accountability and client-focused outcomes.
- We prioritize safety, sustainability, and innovative problem-solving in every project.
- Our nationwide presence with local expertise supports tailored community solutions.
- We leverage cutting-edge technology like LiDAR for precision engineering results.
Associations and certifications
- Engineering News-Record Top 500 Design Firms
Services
Aviation Engineering
Our aviation engineering services encompass airport planning, terminal design, and infrastructure upgrades. We deliver solutions that enhance safety, efficiency, and passenger experience while meeting FAA regulations. Recent projects include master plans for growing regional airports and runway rehabilitation to accommodate modern aircraft demands.
Structural Engineering
We specialize in structural engineering for bridges, buildings, and transportation systems. Our team uses advanced modeling software to create durable, code-compliant structures. Notable work includes the Four Bears Bridge replacement, which addressed complex geotechnical challenges while preserving regional aesthetics.
Environmental Services
Our environmental division provides permitting, habitat assessments, and compliance solutions. We hold specialized certifications for eagle take permitting and cultural resource management. Projects include ecological impact studies for energy infrastructure and wetland mitigation plans that balance development with conservation.
Transportation Planning
We deliver comprehensive transportation solutions from conceptual planning to construction oversight. Services include roadway design, traffic analysis, and multimodal corridor studies. The Kalispell Bypass project demonstrates our ability to manage large-scale, multi-year transportation initiatives that improve regional connectivity and safety.
Surveying Services
Our survey teams utilize LiDAR and mobile scanning technologies for high-accuracy topographic mapping. We support infrastructure projects with boundary surveys, construction staking, and as-built documentation. Recent work includes creating digital terrain models for congested urban highways, minimizing traffic disruption during data collection.
Questions
What engineering sectors does KLJ specialize in?
We provide services across aviation, transportation, environmental, power, telecommunications, and public works sectors with nationwide expertise.
How long has KLJ been in business?
Since 1938, we've delivered engineering solutions, evolving from a regional firm to a nationally recognized Top 500 Design Firm.
Where are KLJ's offices located?
We operate from 25+ offices across eight states including North Dakota, Montana, Colorado, and New Mexico to better serve local communities.
What makes KLJ different from other engineering firms?
As 100% employee-owned, we combine technical excellence with personal accountability, ensuring every project benefits from our team's direct stake in outcomes.
Can KLJ handle large-scale infrastructure projects?
Yes, our experience includes $100M+ projects like the Kalispell Bypass, demonstrating our capability to manage complex, multi-year initiatives.
Does KLJ offer specialized technical services?
We employ cutting-edge technologies like LiDAR scanning and digital terrain modeling for precision surveying and infrastructure analysis.