Stantec has been selected to serve as architect and interior designer for the new regional headquarters campus in the Denver area for Kiewit Corp. The nearly 400,000-sq-ft office complex will accommodate more than 1,700 employees. Stantec also will provide landscape architecture and lighting design for the facility. Kiewit Building Group will serve as the general contractor. The first phase of the project, which includes the first office building and a parking garage, is expected to be complete in spring 2021.