A busy downtown Toronto intersection will be closed for at least two weeks while crews repair a water main that burst over the weekend. King Street West is closed between York and Simcoe streets, and University Avenue is closed between Adelaide Street West and Wellington Street West. The city says that work to fix the water main will take place around the clock. The affected pipe is cast iron and was originally installed 140 years ago, says Bill Shea, director of distribution and collection for Toronto Water.