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Business Details
35 Years
experience
Expert Structural Engineering Services in Washington, DC
Rathgeber-Goss Associates has been a trusted leader in structural engineering since 1991, delivering innovative solutions for new constructions and renovations. Our team combines over 100 years of collective experience with advanced technologies to serve architects, contractors, and owners across diverse sectors. We prioritize direct principal involvement in every project phase, ensuring timely decisions that maintain budgets and schedules.

Our expertise spans feasibility studies, seismic retrofits, and LEED-certified projects, supported by state-of-the-art analysis tools and a commitment to quality assurance. Recognized with multiple SEA-MW awards, we specialize in transforming complex challenges into efficient, sustainable structures while maintaining deep community engagement through initiatives like volunteer food pantries and youth coaching programs.
Services
Structural Engineering Design Building Renovations Data Center Projects LEED Certification Consulting Construction Phase Services
Details
  • Year established: 1991
Highlights and features
  • We offer 30+ years of experience in structural engineering with 100+ years of combined expertise.
  • Our team includes principals with SEA-MW award-winning project portfolios.
  • We specialize in LEED-certified sustainable building transformations.
  • Our engineers hold registrations in 10 states for nationwide project capabilities.
  • We utilize advanced BIM and AutoCAD technologies for precision design.
Associations and certifications
  • LEED Gold
What people say
Award-winning projects Over 100 years experience LEED Gold certification Expert team of engineers Community engagement initiatives
Services
Structural Engineering Design
We provide comprehensive structural engineering design for commercial buildings, healthcare facilities, and educational institutions. Our services include load calculations, material selection, and code compliance verification. With expertise in steel, concrete, and wood structures, we deliver cost-effective solutions that balance safety with architectural vision.
Building Renovations
Our renovation specialists assess existing structures for expansion, reinforcement, or adaptive reuse. We handle vertical/horizontal additions, seismic retrofits, and historic preservation projects. Recent work includes transforming 1960s office buildings into modern LEED-certified spaces while maintaining structural integrity.
Data Center Projects
We design mission-critical data center structures with specialized load requirements. Our experience includes 7 million+ sq ft of data center projects featuring reinforced flooring systems and vibration-resistant foundations. We optimize layouts for cooling efficiency and future scalability.
LEED Certification Consulting
Our team guides projects through LEED Gold and Silver certification processes. We implement sustainable materials, energy-efficient structural systems, and recycled building components. Recent LEED projects demonstrate 30% reduced environmental impact compared to conventional designs.
Construction Phase Services
We provide continuous support during construction including shop drawing review, site inspections, and problem-solving. Our principals maintain direct involvement through weekly progress meetings and real-time coordination with contractors to ensure design intent is maintained throughout the build process.
People
Michael J. Goss
Principal Emeritus
44-year structural engineering veteran with 31 years at RGA. Designed 1,500+ projects including CapitalOne headquarters and Howard County Hospital. Recipient of 2022 SEA-MW Outstanding Achievement Award.
Justin T. Domire
Principal
Licensed Professional Engineer directing complex structural projects. Specializes in high-rise buildings and seismic retrofitting. Holds direct line (301) 637.6893 for project consultations.
Brad M. Ehlers
Associate Principal
Structural design expert with focus on healthcare and educational facilities. Manages multidisciplinary teams for large-scale renovations. Direct contact available at (301) 637.6892.
Nehemias J. Iglesias
Associate Principal
Specializes in building diagnostics and forensic engineering. Leads technical reviews for complex renovation projects. Contact directly at (301) 637.6877 for structural assessments.
Jen V. Rouchard
Project Manager
Manages project timelines and client communications for commercial developments. Coordinates between design teams and construction crews to maintain schedule adherence. Direct line: (301) 637.6890.
Questions
What structural engineering services do you specialize in?
We specialize in commercial buildings, data centers, healthcare facilities, and LEED-certified renovations. Our expertise includes seismic retrofits and vertical expansions of existing structures.
How experienced is your engineering team?
Our principals have 30+ years average experience with 1,500+ completed projects. We maintain Professional Engineer registrations in 10 states.
Can you handle historic building renovations?
Yes, we've completed multiple historic renovations including Parker Flats at Gage School and Atlas Performing Arts Center while preserving structural integrity.
Do you work on LEED-certified projects?
We actively support sustainable design with multiple LEED Gold-certified projects like 1400 Crystal Drive transformation in Arlington, VA.
What geographic areas do you serve?
We operate primarily in Washington, DC, Virginia, and Maryland with recent projects extending to Pennsylvania and Ohio markets.
How are construction phase services handled?
Our principals provide weekly site visits, shop drawing reviews, and real-time problem solving to ensure design intent is maintained throughout construction.