Licensed Structural Engineer

Bridges & Infrastructure Arizona

25+ years of experience delivering resilient, innovative structural solutions across the Southwest.

View Portfolio Free Consultation

Steel & Concrete Excellence

Iconic Bridges & Landmarks

From Verde Canyon to Phoenix metro, every structure is engineered for safety, longevity, and Arizona's unique environment.

See Projects Meet the Engineer

Freelance Structural Engineer

Precision. Integrity. Arizona Rooted.

Personalized engineering services for public agencies, architects, and contractors. No project too complex.

Start Your Project About
Freelance Structural Engineer
Providing Excellence in Bridge Engineering

G ATLAS Engineering provides specialized structural engineering services across Arizona and the Southwest. With over 25 years of experience in bridge design, seismic analysis, and infrastructure projects, I bring technical excellence and practical solutions to every commission.

  • Over 25 years of structural engineering experience

  • 45+ bridges & major structures completed

  • Exceptional quality & seismic expertise

Gregory Johansson
Director & Co-Founder
Director Portrait

Your trusted structural partner — Arizona bridges, landmarks, and beyond.

What We Deliver
Structural Engineering Services
Bridge Engineering
Bridge Engineering

Concrete, steel, segmental & pedestrian bridges. Full design, load rating, and seismic analysis.

Structural Analysis & Retrofits
Structural Analysis & Retrofits

Existing structure evaluation, rehabilitation, and seismic retrofits for bridges & buildings.

Commercial & Industrial
Commercial & Industrial

Steel frames, concrete tilt-up, foundation design for warehouses, offices, and manufacturing.

Forensic & Expert Reports
Forensic & Expert Reports

Structural assessments, failure analysis, and expert witness for legal cases.

Construction Engineering
Construction Engineering

Temporary works, shoring, formwork design, and shop drawing review.

Portfolio
Bridges & Structures
Verde Canyon Arch Bridge

Verde Canyon Arch Bridge Cottonwood, AZ

Structural rehabilitation and seismic upgrade of a historic steel arch bridge over Oak Creek. Included fracture-critical inspection, retrofit design, and load rating. Completed 2023.

Bridge Rehabilitation
View Project
Salt River Crossing

Salt River Crossing Tempe, AZ

Post-tensioned concrete pedestrian bridge with iconic shade canopies. Designed for high durability and ADA compliance. Award-winning sustainable infrastructure.

Pedestrian Bridge
View Project
Agua Fria Viaduct

Agua Fria Viaduct I-17 Corridor, AZ

Multi-span precast concrete girder bridge with accelerated construction techniques. Full structural design, seismic detailing, and construction support.

Highway Bridge
View Project
Engineering Philosophy
Core Values
Safety First

Every design prioritizes public safety and structural resilience beyond code minimums.

Innovation

Advanced materials and analysis techniques to solve complex structural challenges.

Uncompromising Quality

Detailed, error-free construction documents and responsive engineering support.