Throughout the 1980s and 1990s, Kiewit continued to grow and prosper, developing contracting opportunities in the public sector and expanding into significant markets in the private sector. By the time Kiewit celebrated its centennial in 1984, the company had district offices throughout the United States and Canada, and was performing nearly all types of construction work.
In the 1980s, Kiewit began making significant investments in ventures outside its core businesses, with an emphasis on energy and telecommunications. The non-core businesses were spun off from the construction and mining operations in 1998. In the reorganization, Ken Stinson became chairman and CEO of Kiewit. Also during the 1990s, Kiewit became a leader in design-build and engineer-procure-construct (EPC) delivery methods.
Notable projects during this period include: