Separate water main breaks shut down traffic and disrupted water service to thousands of homes and businesses in two Halifax neighbourhoods Thursday, opening up a huge hole along one road and leading to flooding in some homes. A water main break overnight opened a hole and closed part of Herring Cove Road near Dentith Road, Halifax Regional Police said in a news release. Halifax Water said in an email about 7,000 service connections were impacted in the area. The number of people affected is higher, since an apartment building is counted as a single service connection.