Constructed in 1929, historic Krieger Hall sits on the Keyser Quadrangle at Johns Hopkins University (JHU). It connects to Ames Hall through a vestibule and colonnade walkway to the west and adjoins an elevated plaza over the library to the east. JHU faculty and staff reported leakage into below-grade spaces along the north elevation. SGH investigated the cause of leakage and masonry distress, and designed repairs.