James J. Rongoe Jr., of Darien, died on Thursday, Aug. 9 at Stamford Hospital. He was 64.

Mr. Rongoe is survived by his three children, Christine Osborn and her husband Bradley of Glen Rock, N.J.; Catherine Rongoe of Washington D.C.; Nicholas Rongoe and his wife Toni-Ann of Darien; his two granddaughters, Portia Osborn and Ava Rongoe; and his long-time companion Debra Rosenblum of Norwalk.  He also leaves behind many close cousins and their families. His final days were spent surrounded by the love and support of his family and close friends, his family said.

Mr. Rongoe was born on Jan. 16, 1948 in Stamford, son of Carmella Rongoe and the late James J. Rongoe Sr.  A native of Stamford, he graduated from King School, where he was a dedicated student and athlete.

Mr. Rongoe devoted his life to his career as a structural engineer. He received a bachelor's degree from University of Virginia, an master's degree from Columbia University, and completing graduate studies at Cornell University and Hofstra University.  He established his structural engineering firm, Rongoe Engineers, LLC, in 1980 and contributed greatly to the profession over the past 32 years.

Mr. Rongoe chaired the CT Code Advisory Committee and also served on the International Building Code Structural Advisory Committee. He served on technical committees of American Society of Civil Engineers, American Institute of Steel Construction, National Council of Structural Engineering Associations, and the International Code Council, and authored numerous technical papers and journal articles.

Mr. Rongoe also served on the Board of Directors of the James Delahey Foundation for the Advancement of Structural Engineering Education. He holds a U.S. patent for a composite girder system and was recently pursuing another patent.  He was presented with the lifetime achievement award from the Structural Engineers Coalition of the American Council of Engineering Companies of Connecticut, marking his induction into the Connecticut Structural Engineers Hall of Fame.

Mr. Rongoe’s great passion for life was noted by all who knew him, his family said.  He was a devoted, caring, and kind-hearted father who was actively involved in his children’s academic, athletic, and social lives.  He supported his local community, especially the Darien Junior Football League.  In his free time, Mr. Rongoe enjoyed playing tennis and working on his house and in the yard.  He was a Knight of Columbus and proud of his Italian-American heritage.

The family will receive friends at the Edward Lawrence Funeral Home, 2119 Post Road, Darien on Monday, Aug. 13, 2012 from 4 to 8 p.m.

A Mass of Christian Burial will be held at St. John R.C. Church, 1986 Post Road, Darien on Tuesday, Aug. 14, 2012 at 11:30 am.  Burial will follow at Spring Grove Cemetery in Darien.

Donations Mr. Rongoe’s memory may be made to the Carl and Dorothy Bennett Cancer Center, c/o Stamford Health Foundation, 1351 Washington Blvd., Suite 202, Stamford, CT 06902, or the Whittingham Cancer Center, 24 Stevens Street, Norwalk, CT 06850.