Magothy River Middle School 241 Peninsula Farm Rd, Arnold, MD21012 Housed in the same building with Severn River Middle School, Magothy River students are from the feeder schools of…More Broadneck and Cape St. Claire elementary schools. The feeder high school is Broadneck High. The students here consistently perform in the top five middle schools in the county with state assessments. The school's active PTA sponsors family events and the PE program annually participates in the Hoops for Heart fundraiser. Clubs at Magothy, include everything from computers and drama to Students Against Drunk Driving and French. Students also are offered participation in intramural sports, including ping-pong.