Yahoo7 News | Dangerous sinkholes filled in Yahoo7 News The sinkholes that led to the evacuation of two unit blocks in western Sydney have finally been filled in. It took nine hours, 30 truckloads and 345 tonnes of concrete to plug the two dangerous holes at Harris Park. The sinkholes, which spread from an empty ... Harris Park sinkholes: Work underway to make apartment buildings safe Sydney apartment sinkholes: Harris Park residents continue wait to return to ... Sydney sinkholes filled with cement |