Library-Condo Tower Begins With a Deep Hole

摘要

hat was the biggest challenge for One Clinton, the $280-million combination library and luxury condominium project in Brooklyn? You could call it "the hole story." Workers had to excavate 50 ft at the site-shaped like Manhattan's Flatiron building and near the foot of the Brooklyn Bridge-going that deep to avoid putting pressure on adjacent No. 2 and No. 3 subway tunnels. That effort alone took about six months to complete before the rest of construction could begin in earnest.