https://books.google.com/books?id=aft-3rWtXvwC&dq=%22robertson+martin+and+smith%22+engineering&source=gbs_navlinks_s Leon Oberg Locomotives of Australia: 1854 to 2007 (Google eBook) Rosenberg Publishing, 2007 p.14] Gary B. Magee, Andrew S. Thompson, Empire and Globalisation: Networks of People, Goods and Capital in the British World, C.1850-1914, Cambridge University Press, 11/02/2010, p.139 The line was opened in September 1854 (three years after the discovery of gold at Ballarat) and ran for 4 kilometers from the Melbourne (or City) Terminus (on the site of modern-day Flinders Street station), crossing the Yarra River on the original Sandridge Bridge to Sandridge (now Port Melbourne).