Complex sentence: In his 33 years at IUPUI he had been integral in the growth of Herron's sculpture program, both with spearheading the opening of the foundry in 1970 and in assisting in the design of Herron's new sculpture and ceramics building at 1350 Indiana Avenue.
Split into simpler sentences: In his 33 years at IUPUI he had been integral in the growth of Herron's sculpture program. In addition to spearheading the opening of the foundry in 1970, he also assisted in the design of Herron's new sculpture and ceramics building at 1350 Indiana Avenue.