Work on the dome started in 1906. The structure required heavy foundations as it extended over railway tracks. In May 1908, work was progressing more slowly than planned, with the expected completion date of April 1909 increasingly unlikely to be met. Rodger's contract was terminated in August 1908. A Royal Commission was appointed in May 1910, finding that Rodger could be held accountable for the slow progress in 1908, but he should be compensated for the difficulties before then. The Way and Works Branch of the Victorian Railways took over the project, and the station was essentially finished by mid-1909. The verandah along Flinders Street, and the concourse roof and verandah along Swanston Street, were not completed until after the official opening in 1910.