Cherry Street Strauss Trunnion Bascule Bridge

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Cherry Street Strauss Trunnion Bascule Bridge
Cherry Bascule.jpg
The Cherry Street Bascule Bridge
Coordinates 43°38′29″N79°20′56″W / 43.6413°N 79.349°W / 43.6413; -79.349 Coordinates: 43°38′29″N79°20′56″W / 43.6413°N 79.349°W / 43.6413; -79.349
Carriesvehicular and pedestrian
CrossesToronto Harbour Shipping Channel
Locale Toronto
Other name(s)Cherry Street Bridge
OwnerPorts Toronto
Maintained by Ports Toronto
Heritage status
Typelisted
DesignatedFebruary 25, 1992
Characteristics
Design Bascule
Material Steel
Total length120 metres (390 ft)
Width20 metres (66 ft)
Height48 metres (157 ft)
Longest span40 metres (130 ft)
Clearance above (?) Clearance above the deck
Clearance below No limit when the bridge is open (Toronto Harbour Ship Channel)
History
Architect Joseph Strauss
Constructed by Dominion Bridge Company
Construction end1930
Construction costCA$500,000

The Cherry Street Strauss Trunnion Bascule Bridge is a bascule bridge and Warren truss in Toronto, Ontario, Canada. [1] Located in the industrial Port Lands area, it carries Cherry Street over the Toronto Harbour Ship Channel and opens to allow ships to access the channel and the turning basin beyond. There are two bascule bridges on Cherry Street. The other, smaller bridge, crosses the Keating Channel, while this bridge crosses the Ship Channel.

Bascule bridge moveable bridge using a counterweight to balance a span through its upward swing to let boats move underneath

A bascule bridge is a moveable bridge with a counterweight that continuously balances a span, or "leaf", throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed.

Toronto Provincial capital city in Ontario, Canada

Toronto is the provincial capital of Ontario and the most populous city in Canada, with a population of 2,731,571 in 2016. Current to 2016, the Toronto census metropolitan area (CMA), of which the majority is within the Greater Toronto Area (GTA), held a population of 5,928,040, making it Canada's most populous CMA. Toronto is the anchor of an urban agglomeration, known as the Golden Horseshoe in Southern Ontario, located on the northwestern shore of Lake Ontario. A global city, Toronto is a centre of business, finance, arts, and culture, and is recognized as one of the most multicultural and cosmopolitan cities in the world.

Ontario Province of Canada

Ontario is one of the 13 provinces and territories of Canada and is located in east-central Canada. It is Canada's most populous province accounting for 38.3 percent of the country's population, and is the second-largest province in total area. Ontario is fourth-largest jurisdiction in total area when the territories of the Northwest Territories and Nunavut are included. It is home to the nation's capital city, Ottawa, and the nation's most populous city, Toronto, which is also Ontario's provincial capital.

Contents

The bridge was built in 1930 [1] by the company of Joseph Strauss and the Dominion Bridge Company. The north side of the bridge has 750-ton concrete counterweights that allow the bridge to pivot to open. The bridge uses 500 tons of steel in its construction. [2] The bridge is designed to carry two lanes of traffic. It cost CA$500,000 ($8.13 million in 2018 dollars) [3] to build. [2] It was officially opened on June 29, 1931 by Toronto Mayor William Stewart. [2] The bridge was listed under the Ontario Heritage Act by the City of Toronto in 1992 as architecturally historical. [4]

Joseph Strauss (engineer) American structural engineer

Joseph Baermann Strauss was an American structural engineer German descent, who revolutionized the design of bascule bridges. He was the chief engineer of the Golden Gate Bridge, a suspension bridge.

Dominion Bridge Company

Dominion Bridge Company Limited was a Canadian steel bridge constructor originally based in Lachine, Quebec. From the core business of steel bridge component fabrication, the company diversified into related areas such as the fabrication of holding tanks for pulp mills and skyscraper framing.

Counterweight equivalent weight that balances a load

A counterweight is a weight that, by exerting an opposite force, provides balance and stability of a mechanical system. Its purpose is to make lifting the load more efficient, which saves energy and is less taxing on the lifting machine.

The bridge's south end in 2013 Cherry Street Bridge in Toronto - south end in 2013.jpg
The bridge's south end in 2013

The city spent CA$2.5 million to refurbish the bridge in 2007. [5] The Toronto Port Authority made further repairs from December 2012 to September 2013 at a cost of CA$2 million. [6]

See also

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References

  1. 1 2 Kuitenbrouwer, Peter (September 13, 2013). "After nine months of repairs this Toronto bridge is finally open for business again, sort of". National Post. Retrieved September 15, 2013.
  2. 1 2 3 Toronto Harbour Commission Public Affairs Department 1985, p. 51.
  3. Canadian inflation numbers based on Statistics Canada tables 18-10-0005-01 (formerly CANSIM 326-0021) "Consumer Price Index, annual average, not seasonally adjusted". Statistics Canada. Retrieved March 6, 2019. and 18-10-0004-13 "Consumer Price Index by product group, monthly, percentage change, not seasonally adjusted, Canada, provinces, Whitehorse, Yellowknife and Iqaluit". Statistics Canada. Retrieved March 6, 2019.
  4. "Cherry St". Toronto Heritage Properties Inventory. City of Toronto. Retrieved 2009-02-16.
  5. "That Old Blue Bridge". Unknown Victoria. 2009-08-27. Retrieved 2012-03-26. Steel bridges, especially ones with intricate latticework like ours, contain thousands of difficult-to-reach joints, often hiding corrosion that's accelerated by salty air. Repairing and repainting such bridges is an ongoing headache, especially compared to ones made of concrete. Nevertheless, some places re-invest in their old steel bridges. Toronto refurbished its Cherry Street Bridge for $2.6 million in 2007, and recently Boston and San Francisco spent tens of millions renovating their Strauss drawbridges as well.
  6. Kuitenbrouwer, Peter (September 13, 2013). "After nine months of repairs this Toronto bridge is finally open for business again, sort of". National Post.
Bibliography
Mike Filey Canadian journalist and author

Mike Filey is a Canadian historian, journalist and author. He was awarded the Jean Hibbert Memorial Award in 2009 for promoting the city of Toronto and its history.

Dundurn Press is one of the largest Canadian-owned book publishing company of adult and children's fiction and non-fiction. The company publishes Canadian literature, history, biography, politics and arts. Dundurn has about 2500 books in print, and averages around one hundred new titles each year. Dundurn Press was established in 1972 by Kirk Howard, In 2009, Dundurn forged a co-publishing partnership with the Ontario Genealogical Society, and in 2011, Dundurn purchased Napoleon & Company and Blue Butterfly Books. In 2013, Dundurn acquired Thomas Allen Publishers, the publishing branch of Thomas Allen & Son Limited.

International Standard Book Number Unique numeric book identifier

The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.