United Structural Design LLC
Mesa, AZ 85202
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United Structural Design LLC
United Structural Design LLC
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United Structural Design LLC
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Owners, Principals & Senior Executives
Benjamin Crellin's Bio
B.S. Civil Engineering – University of Massachusetts Amherst
M.S. Civil Engineering – University of Massachusetts Amherst
Registered Professional Engineer – Arizona and Massachusetts
NCEES Model Law Structural Engineer
Ben earned his M.S.C.E. in Structural Engineering from the University of Massachusetts Amherst. Studying under Dr. Scott Civjan P.E. Ben published his graduate thesis on the topic of experimental concrete admixtures for enhancing concrete durability. After graduation Ben moved to Phoenix, Arizona and began his professional career at Paragon Structural Design (a subsidiary of CH2M HILL). Ben is proud to have worked on many high profile projects in Arizona including the Phoenix Fire Training Academy, Gateway Community College Integrated Education Building, and Maricopa County Downtown Court Tower. In 2010, Ben met John while working on a multibillion dollar microelectronics plant in Chandler Arizona where they developed a solid working relationship and became good friends. In June of 2013 United Structural Design was formed after Paragon Structural Design ceased local operations in Phoenix. Ben and John carry on the values and traditions they gained while working under some of the top Professional Structural Engineers in the Southwest.
John Elder's Bio
B.S. Civil Engineering – University of Nevada
M.S. Civil Engineering – University of Nevada
Registered Professional Engineer – Arizona, California, Nevada, Hawaii, Texas, Maryland, New Jersey, Utah
John has worked in the structural engineering industry since graduating from the University of Nevada in 2007. John began his career in Las Vegas, Nevada working on several high profile structures including Bishop Gorman High School, State of Nevada Maximum Security Prison, and a new International Security wing at the McCarran International Airport. In 2009, John returned to the University of Nevada in Reno to obtain his Master’s Degree in Civil Engineering from the Earthquake and Structural Engineering Program. While studying at the University, John was able to work under the world leading professors and researchers in the design of seismic base isolation systems. After graduating in 2010, he returned to work in Phoenix Arizona to work at Paragon Structural Design/CH2M Hill, one of the top structural engineering firms in all of Arizona. John cofounded United Structural Design with Ben in June of 2013. John is determined to provide quick delivery of quality design documents and build long lasting relationships in the building construction industry.