71-Year ASCE Member, Former Colorado Section President Day Dies at 91


A Life Member who joined ASCE in 1945, David Allen Day, P.E., F.ASCE, a construction and excavation expert, has died at 91.

Day served as president of the Colorado Section in 1965 and as editor and chair of the National Construction Division of ASCE.

Born in Ann Arbor, MI, Day earned his bachelor’s degree at Cornell University and his master’s at the University of Illinois. He was commissioned as an ensign in the U.S. Navy on his wedding day, Sept. 8, 1945.

Day worked as an associate professor in the civil engineering department at the University of Illinois from 1948 to 1958. He then spent 17 years at the University of Denver in its civil engineering department, including a stint as College of Engineering dean. He also was a senior staff engineer for Stearns Roger Inc.

Among the many publications Day authored and coauthored was the popular civil engineering textbook Moving the Earth.

Outside of civil engineering, Day enjoyed tennis, skiing, and photography.

Survivors include his wife of 71 years, Mary; their children, Marilyn Morfitt (Neil), Barbara Day, Suzanne Peterson (Andy), Ted Day (Susy), and Carrie Day (Tim); seven grandchildren; and two great-grandchildren.

The couple’s first child, Dallen, died in infancy.

Donations are encouraged in Day’s memory to Christ Episcopal Church or Cornell University, 130 E. Seneca Street, Suite 400, Ithaca, NY 14850.


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