The Great War had also caused many necessary infrastructure projects to be delayed or abandoned, many of which began in the 1920s, including the Sydney Harbour Bridge and Sydney's underground railway system in addition to the Commonwealth government beginning to fund major highways. New dams and grain elevators were built, and the rural railway network was expanded in nearly every state. Large sums of government money were made available to provide returned First World War servicemen with farmland and agricultural equipment under soldier settlement schemes.