Richard C. Halpern, a Chicago-based construction manager who oversaw numerous high-profile domestic and international building projects during a 50-year career, died July 3 of complications from cancer treatment in Houston. He was 78.

As an executive at former building firm Morse Diesel, Halpern managed the construction of the Sears Tower, the world’s tallest building when it opened in 1974. He was among three executives cited by ENR in 1974 for their roles in the landmark project, which included the industry’s first major effort to recruit minorities into its workforce.