Bondi Ocean Outfall Sewer, Heritage sanitary sewer network in North Bondi, Australia.
The Bondi Ocean Outfall Sewer extends 6.1 kilometers from Darlinghurst to North Bondi, featuring large brick-lined tunnels that transport wastewater to the Tasman Sea.
Built between 1880 and 1889, this infrastructure represented the first ocean outfall sewer in Sydney, addressing severe harbor pollution issues from the 1870s.
The sewer system marked a transformation in Sydney's public health practices, leading to significant improvements in urban sanitation and water quality management.
The gravitational system collects sewage from areas above the main line, with modern pumping stations and extensions added to accommodate population growth.
The tunnel construction began from the ocean end, using advanced surveying techniques that allowed brick laying to commence before complete breakthrough.
Location: New South Wales
GPS coordinates: -33.88579,151.28147
Latest update: September 19, 2025 20:12
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