Water was shut off Monday for dozens of customers in Halifax after a water main burst and a sinkhole developed on a street lined with homes and businesses. Halifax Water said it was made aware of a potential water main issue around 5:30 a.m. AT on Agricola Street, a busy thoroughfare that connects north-end and central Halifax. The street was closed between Sarah and Woodill streets while crews responded, and water service was shut down between West and Cunard streets, affecting about 51 civic addresses.