The pile driving continues through the end of 2008

Foundation construction is progressing on schedule at 99 Church Street, located between Barclay and Park Place. On November 18th, crews began driving piles at the site of the future 80-story luxury hotel and residential tower. The pile driving continues through the end of 2008, and takes place during regular construction hours -- weekdays from 7 a.m. to 3 p.m., possibly extended to 6 p.m. on occasions.

Developer Silverstein Properties says that by using a hydraulic hammer (rather than a diesel hammer), the pile driving involves less noise and less pollution. It also delivers fewer blows than a diesel hammer. Crews also are monitoring vibrations from the hammer and adjusting the energy it uses accordingly. The tower is planned to open in 2011.