The Hills. Reducing flood impacts

The Hills Shire Council is working to effectively reduce flood impacts through flood-related building and development controls plus flood mitigation works. The shire drains into two river basins, the Upper Parramatta River and the Hawkesbury River making the Sydney Hills a risk area. Major floods took place across Sydney, hitting The Hills hard in 1986 and 1988, damaging hundreds of homes and businesses in the Upper Parramatta River catchment. Flood mitigation works and services between The Hills Shire Council and neighbouring councils has halved the number of houses above floor level in a 100-year flood and the number of flood-affected businesses has been reduced by more than two-thirds in the Upper Parramatta River catchment.