PORTLAND, OR – Skanska, a leading global construction and development firm, broke ground on the modernization of Cleveland High School for Portland Public Schools on June 12. The project will replace the existing school with an approximately 300,000-square-foot high school on the same site… Construction is expected to begin in July 2026 and be completed in the summer of 2029. …Designed by Mahlum Architects and Studio Petretti, the new school will incorporate nearly 870,000 board feet of Pacific Northwest-sourced mass timber, making it one of the largest K-12 mass timber projects in Oregon and the Pacific Northwest and the first school in the area designed to the Type IV Heavy Timber (HT) construction standard. The structure will combine Acoustic Dowel Laminated Timber (ADLT) decking, glulam beams and columns, structural steel, and low-carbon concrete to create a durable, lower-carbon building that supports both sustainability and long-term performance.