Beaverton’s $185 million dollar Mountainside High School is now open for the 2017 school year! HHPR provided the civil engineering, survey, stormwater management, sanitary sewer and retaining wall design. The New High School is located in the South Cooper Mountain area of Beaverton. It is designed to accommodate 2,200 students and 200 staff at full enrollment. The campus includes a three level high school building, a 200 space staff parking lot with an additional 350 space student/visitor parking lot, a stadium, tennis courts, and track and sports fields, including two baseball and softball fields.