The Sailing Pavilion floods all the time, sometimes onto Storrow, because that's where the lower Charles Basin is supposed to flood by design to keep everywhere else high and dry. It's a non-issue for campus. I was a freshman during the Great Flood of '96. No classes got canceled, and CAS basement classrooms stayed dry as a bone. All while half the Back Bay was pumping out basements and the water in Kenmore Station went up halfway into the street underpass. Northeastern and MIT got scuffed up much worse than BU did in the last 50-year flood event.