At the same time, Bain was also in charge of the construction of the Schoemanspoort pass that connects the Swartberg pass with Oudtshoorn. Bain's last road building project was the construction of Victoria road in 1887 that connects Cape Town with Camps Bay across the neck between Table Mountain and Signal Hill. In 1888 Bain resigned from the Road Department and accepted the position of Irrigation and Geological Surveyor of the (Cape) Colony. His prolific career with the Road Department resulted in a remarkable heritage of some of the most scenic and impressive mountain passes in South Africa. He continued his prolific work tempo in his new capacity until his death. During his tenure he designed and completed a large reservoir, the Verkeerdevlei reservoir, amongst other projects.