41. Draining of the swamps commenced in the 1860s, by convict labour , facilitating the construction of more permanent buildings. 42. A dam was constructed by David Lennox using convict labour at Liverpool in 1836, as a water supply to Liverpool. 43. The pass, opened in 1854, was constructed by road engineer Andrew Geddes Bain with the use of convict labour . 44. A group in Britain led by Edward Gibbon Wakefield sought to start a colony based on free settlement rather than convict labour . 45. The final report presented findings that Hampton had engaged in corrupt practices, including the employment of convict labour for personal profit. 46. It too was constructed by convict labour but under the supervision of the newly appointed Surveyor General, Major Sir Thomas Mitchell. 47. When floods in 1862 almost destroyed it, the structure was rebuilt using convict labour , and raised to better withstand future floods. 48. A group in Britain led by Edward Gibbon Wakefield were looking to start a colony based on free settlement rather than convict labour . 49. At this time the Australian population was approximately 1 million and the colonies could now sustain themselves without the need for convict labour . 50. Construction began in on 5 January 1835, and using mostly convict labour , the basement level had been completed by March 1836.
