Centenary of the O'Shannassy Water Supply System - 1913 to 2013 - a Pictorial Heritage


1803 - Beginnings
1892 - Surrey Hills Reservoirs
1911 - Design and Construction
1911 - The O'Shannassy Weir
1914 - Maintenance and Operations
1923 - Bushfires, Landslips, and Floods
1924 - Modifications and Enlargements
1927 - Silvan Dam
1927 - Mt Evelyn Aqueduct
1928 - The O'Shannassy Reservoir
1929 - Upper Yarra Conduits
1931 - Silvan Inlet Aqueduct
1996 - Decommissioning
2006 - Pigging Project
2007 - O'Shannassy Aqueduct Trail - Overview
O'Shannassy Aqueduct Trail - Parrot Rd to Don Rd
O'Shannassy Aqueduct Trail - Don Road to Dee Rd
O'Shannassy Aqueduct Trail - Dee Rd to Sussex St
O'Shannassy Aqueduct Trail - Sussex St to Yuonga Rd
O'Shannassy Aqueduct Trail - Yuonga Rd to Donna Buang Rd
O'Shannassy Aqueduct Trail - Donna Buang Rd to Cement Creek Rd
O'Shannassy Aqueduct Trail - Cement Creek Rd to the Weir
The Present
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Horse train Warburton in 1906

For comprehensive information and images about the history and development of the Warburton Forests, and the evolution of the timber industry in the region, readers are invited to visit the author's free Pictorial Heritage Project.

Aqueduct route in 1925 (MMBW map) - click image for a larger map!

Map of upper section of Aqueduct as it was in 1933

1891 Official opening of Maroondah system


Very few people know the real story of the O'Shannassy Water Supply System and the people behind it - and all evidence of this once-great undertaking is fading fast. 

The history of the O'Shannassy System is inextricably related to the need to supply water to the growing City of Melbourne.

The Aqueduct was designed in 1911 and completed in 1914 and was an incredible feat of engineering - from its visionary conception, to its amazing design and construction, to its great effectiveness, to its extraordinary maintenance and to its ultimate deterioration and demise. 

Much of the upper part of the Aqueduct has now been developed as the O'Shannassy Aqueduct Trail, providing a fascinating insight into some of our most interesting history and most precious and beautiful natural assets.

Surrey Hills Reservoir (opened 1892) photo c1914 (Canterbury Rd)

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