In 1974, Utterback began serving as an instructor for the Department of Art and Art History at the
University of Iowa. In 1975–1976, he was a visiting artist at the
University of Wisconsin-Platteville. It was during this time, in early 1976, that the University of Iowa held a competition for a structural sculpture to be placed on the university's campus, near the
Hancher Auditorium. Utterback was chosen, and, later in 1976, he completed the piece, which he entitled, “Untitled.” Utterback moved to
Brooklyn,
New York in 1976. There he created a series of drawings on mylar, linen, and paper. He returned to
Des Moines in 1979, after receiving a commission to create an art installation in the state capitol grounds of the Hoover State Office Building in Des Moines. That year he began construction on the piece he titled “Five Stones, One Tree”, which was completed in 1980. In 1996, Utterback returned to New York to begin designing a large 1,000-acre art piece. It was envisioned as a planting reserve, incorporating four limestone “pyramid” structures and land covenants. However before construction could begin, in 1997 Utterback died aged 49 in Brooklyn, N.Y. ==Selected works==