The existing orchestra pit will remain. The temporary wood frame protects the plaster in the audience chamber from the cold and moisture as the new foundations and walls go in. To allow excavation in the Jackson Piano building basement, steel columns were temporarily installed. New concrete walls inside the existing walls and 6 to 11 feet below the existing walls are formed in the Jackson Piano building. The space between the new and existing walls will serve as an air duct.
Excavation begins for footings to support walls and columns of the new backstage wall.
Same as previous, from Main Street west.