August 25, 1960: Water and the handling of it was a prime concern for the contractors on the Prudential Tower site. Pumps ran 24 hours a day and seven days a week to pump water out of the excavation. The pumps took the water away at the rate of half a million gallons day. After the Massachusetts legislature deferred action on a tax obligation for the Prudential and construction was halted, officials ordered flooding of the completed foundation work to save the coast of pumping until construction resumed. The water level was allowed to increase until it hit a depth of 25 feet. A seven foot high chain link fence was erected around the 9 1/2 acres under water in order to protect the public against any hazard presented by the man-made lake.