19-year cooling project complete
After 19 years of work, Penn has installed the final piece in an 18,700-foot jigsaw puzzle. This past weekend, officials completed the last leg of a system of underground pipes that will change the way Penn provides air conditioning. The $125 million project, started in 1988, will connect all University buildings to a single network of pipes - 40 to 60 inches, and lying as low as 20 feet underground - that carries chilled water.







