navigation of the river. European history In 1846 Roderick Mitchell, Commissioner of Crown Lands and the son of explorer, Sir Thomas Mitchell, proved that the Barwon and MacIntyre Rivers were the same river under different names. Regular steamer services ran from Walgett to Bourke during 1880 to 1912. During the floods of 1879 and 1886 the steamers were able to travel into Collarenebri and as far as Mungindi in 1890. The Brewarrina Lift Bridge, which was built in 1888 over the Barwon River on the Kamilaroi Highway, has also been assessed as being of state significance. The Boonanga bridge completed in 1928 to cross the Barwon River near Boomi, is an early example of Allan timber truss road bridges. This bridge has been recorded with the NSW state agency heritage register. See also Mungindi Bridge References External links Longitudinal profile of the Barwon River; sourced from Murray–Darling Basin Authority Barwon-Darling catchment at Commonwealth Environmental Water Office, Department of Sustainability, Environment, Water, Population and Communities. 19 December 2012. Tributaries of the Darling River