The O'Shannassy Reservoir supplies water to the Silvan Reservoir, which distributes it to most parts of Melbourne. The dam was completed in 1928 and is an earthfill embankment with a reinforced concrete core wall.
This photograph is significant as it provides a detailed insight into the Boards activity and construction of one of Melbourne's most important water supply systems. Furthermore, it is of historical importance to the history of Melbourne while it is representative of shaping Melbourne's environments, transforming and managing land and natural resources, and providing urban infrastructure and services. This photograph also covers the theme of Safety, depicting the safety standards of the time particularly with clothing.
Black and white photograph