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The tunnel-boring machine emerging through the rocky cliff behind the Supreme Court of Canada on Wellington Street signified a major milestone for the Combined Sewage Storage Tunnel project: the completion of the north-south tunnel.
Tunneling began on Chamberlain Avenue in December 2017, continuing for over two kilometres and up to eight storeys below Kent Street, before arriving at the Ottawa River behind the Supreme Court of Canada. The 250-metre-long tunnel-boring machine will now be dismantled, moved and re-assembled to begin tunneling the east-west tunnel from New Edinburgh to LeBreton Flats later this year.
Like many North American cities, downtown Ottawa has a historic combined sewer system, which uses the same pipes to convey both sanitary and surface-water to our treatment facilities. During heavy rains, this system can become overwhelmed, resulting in some untreated water flowing into the Ottawa River. These “combined sewer overflows” are wastewater combined with rain and debris that washes off our streets.
The CSST, with a capacity of approximately18 Olympic-sized swimming pools, will greatly reduce the frequency of combined sewage overflows during storms from entering the Ottawa River, and will help protect the river. In addition, the CSST will reduce the risk of basement flooding in several low-lying areas in the city’s core, and help future-proof our downtown sewer infrastructure by adding capacity and redundancy.
The CSST is a $232.3-million project, with the Government of Canada and the Province of Ontario each providing $62.09 million. The City has committed $108 million towards this important infrastructure project – a key element of the Ottawa River Action Plan.
For more information on City programs and services, visit ottawa.ca or call 3-1-1 (TTY: 613-580-2401). You can also connect with us through Facebook, Twitter and Instagram.
Resources:
Video and photos: Completion of tunnelling
Website: Combined Sewage Storage Tunnel (CSST)
Quotes
“The Government of Canada recognizes that modern, reliable water and sewer infrastructure is essential to developing healthy and sustainable communities. By supporting major wastewater infrastructure initiatives, like Ottawa’s combined sewage storage tunnel, we are investing in green infrastructure that will help protect communities and the environment, benefitting Canadians for generations to come.”
The Honourable Catherine McKenna, Minister of Environment and Climate Change, on behalf of the Honourable François-Philippe Champagne, Minister of Infrastructure and Communities
“Providing modern, reliable infrastructure is a key part of the new government’s promise to make life easier for families, businesses, seniors and students. Our provincial investment helps to create jobs, reduce sewer overflows and basement flooding, as well as improve overall water quality in the Ottawa area.”
Monte McNaughton, Ontario Minister of Infrastructure
“The Ottawa River is a critical water source in the nation’s capital region and has provided many generations of people – from the Algonquin People to the residents of Ottawa today – with a source of drinking water as well as a place for recreation and leisure. The CSST is a major investment to protect the health of this precious water resource, so that all Ottawa residents and visitors can continue to enjoy it.”
Mayor Jim Watson
查看原文...
Tunneling began on Chamberlain Avenue in December 2017, continuing for over two kilometres and up to eight storeys below Kent Street, before arriving at the Ottawa River behind the Supreme Court of Canada. The 250-metre-long tunnel-boring machine will now be dismantled, moved and re-assembled to begin tunneling the east-west tunnel from New Edinburgh to LeBreton Flats later this year.
Like many North American cities, downtown Ottawa has a historic combined sewer system, which uses the same pipes to convey both sanitary and surface-water to our treatment facilities. During heavy rains, this system can become overwhelmed, resulting in some untreated water flowing into the Ottawa River. These “combined sewer overflows” are wastewater combined with rain and debris that washes off our streets.
The CSST, with a capacity of approximately18 Olympic-sized swimming pools, will greatly reduce the frequency of combined sewage overflows during storms from entering the Ottawa River, and will help protect the river. In addition, the CSST will reduce the risk of basement flooding in several low-lying areas in the city’s core, and help future-proof our downtown sewer infrastructure by adding capacity and redundancy.
The CSST is a $232.3-million project, with the Government of Canada and the Province of Ontario each providing $62.09 million. The City has committed $108 million towards this important infrastructure project – a key element of the Ottawa River Action Plan.
For more information on City programs and services, visit ottawa.ca or call 3-1-1 (TTY: 613-580-2401). You can also connect with us through Facebook, Twitter and Instagram.
Resources:
Video and photos: Completion of tunnelling
Website: Combined Sewage Storage Tunnel (CSST)
Quotes
“The Government of Canada recognizes that modern, reliable water and sewer infrastructure is essential to developing healthy and sustainable communities. By supporting major wastewater infrastructure initiatives, like Ottawa’s combined sewage storage tunnel, we are investing in green infrastructure that will help protect communities and the environment, benefitting Canadians for generations to come.”
The Honourable Catherine McKenna, Minister of Environment and Climate Change, on behalf of the Honourable François-Philippe Champagne, Minister of Infrastructure and Communities
“Providing modern, reliable infrastructure is a key part of the new government’s promise to make life easier for families, businesses, seniors and students. Our provincial investment helps to create jobs, reduce sewer overflows and basement flooding, as well as improve overall water quality in the Ottawa area.”
Monte McNaughton, Ontario Minister of Infrastructure
“The Ottawa River is a critical water source in the nation’s capital region and has provided many generations of people – from the Algonquin People to the residents of Ottawa today – with a source of drinking water as well as a place for recreation and leisure. The CSST is a major investment to protect the health of this precious water resource, so that all Ottawa residents and visitors can continue to enjoy it.”
Mayor Jim Watson
查看原文...
