He consulted on numerous projects in Wisconsin and Illinois and made cost-saving innovations in bridge and marina design, says Clifford Lawson, the firm's former chief geotechnical engineer. "He was always noted for the energy he put into his work," says Lawson.
Warzyn also was state chapter president of two engineers' groups. His firm, which ranked among the Top 500 Design Firms in the 1980s, was later sold to employees.
After the war, Bartholomew's global projects included building dams in India and Pakistan. He was a vice president at contractor Fru-Con and formed his own consulting firm.
Bartholomew also authored a still-in-use heavy-construction estimating textbook and chaired the U.S. Energy Dept's Nuclear Waste Repository Board at Yucca Mountain.
In the 1980s, he joined the faculty of what was the new construction management program at California State University, Chico, and was a founding member of the American Council for Construction Education.
“His stories from the construction industry inspired many graduates to follow in his footsteps into the world of heavy construction," says university CM professor Richard Holman.
Bartholomew earned the Golden Beaver Award for engineering in 2000 and was a fellow in the American Society of Civil Engineers.