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Earth Design Associates, Inc. (EDA) is a full service consulting engineering firm providing geotechnical, civil, environmental, and natural resource management expertise on projects across the country and across the globe.  

Since its inception, EDA has performed under the guiding  principle that high quality, cost-effective engineering is a service that EDA and its clients can both profit from. EDA consistently met its mission by developing innovative and practical solutions to client needs, providing timely deliverables, and striving for total client satisfaction.   

EDA is under the leadership of Dr. Ignatius O. Okonkwo, the founding principal, a licensed Professional Engineer, a licensed Professional Geologist, and a graduate of Purdue University. He has over 30 years of global experience in the fields of engineering and natural resources management. He served on technical committee on Soil Improvement of the Geo-Institute of the American Society of Civil Engineers (ASCE).


Professional Services

tunnel engineer working on railroad track
Civil & Geotechnical Engineering

EDA has a long history of providing quality investigative and geotechnical engineering design services for roads, bridges, tunnels, buildings, dams, and infrastructure projects.


Solid Civil and Geotechnical engineering is key to structural integrity and engineering safety. 

EDA's greatest strength is our ability to consider all the elements of our physical environment and create sustainable engineering solutions. 

team of professionals looking at drawing plans
Environmental Services

EDA uses the most advanced technologies to assess, interpret, and solve complex environmental challenges. Our ability to provide a clear vision of groundwater flow and contaminant resources is paramount to protecting and expanding this critical resource.

aerial view of a construction site
Construction Management

EDA  combines over 30 years of civil, environmental, and construction experience to provide top level management services including administration, office engineering, project engineering, field inspection, and all levels of owner's representation. 

engineered water dam
Water Resources

EDA's advanced engineering and computer aided design capabilities are key to providing comprehensive water resource development and protection services. 

renewable energy development
Land And Energy Resources Management

As land use and the demand for energy increases across the world, the need to appropriately manage our natural resources and infrastructure becomes of critical importance. Since its inception, EDA has worked to identify and resolve complex ground engineering challenges. We continually see the need for managing and developing resources in the areas of land, water, and renewable energy. 

Additionally, through our leadership's experience and knowledge, EDA's capability includes provision of services in:

  • Geotechnical Engineering for Oil & Gas exploration and production;

  • Petroleum reservoir characterization and reservoir product optimization;

  • Marginal oil field development services, and

  • Environmental services to support Oil & Gas Exploration and Production.




Hartford, CT  



New York, NY


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