Crews have begun to drill down at the site of the unstable roadway at Eglinton Avenue W. near Keele Street. The best information available suggests a leak of some kind that has undermined tunneling work for the Crosstown LRT. According to some reports there is little chance of a sinkhole opening up. With the many drill holes and underground work needed for this project we may expect more unstable pavement from time to time, it seems. Among concerns at this location is a collapse below ground which might severe a high-pressure watermain which serves Black Creek Drive.