Carroll Engineering provided civil designs under the MSA-BCPS 21st Century Schools partnership for the construction of the new, $95 million Patterson Building. Opened in Fall 2021, the new building combines the Patterson High School and the Claremont School for Special Education into one modern, multidisciplinary facility on 37 acres in Baltimore City. The new school encompasses approximately 266,000 SF with capacity for more than 1,500 students and features a 3-story academic wing and a separate, single-story cafeteria and auditorium wing. Educational facilities include classrooms, state-of-the-art laboratories, shared community spaces, daycare program area, gymnasium, and administrative offices. The project was phased to allow for occupancy of the existing Patterson High School throughout construction of the new building. CEI provided full civil designs for the new building and a variety of outdoor recreational and athletic facilities, including athletic fields, field house, an outdoor playground, and a running track with bleachers.