Jump to content

The Bow (skyscraper)

Coordinates: 51°02′52″N 114°03′44″W / 51.04778°N 114.06222°W / 51.04778; -114.06222
From Wikipedia, the free encyclopedia

The Bow
August 2012
Map
General information
StatusCompleted
TypeOffice
Location500 Centre Street SE, Calgary, Alberta, Canada
Coordinates51°02′52″N 114°03′44″W / 51.04778°N 114.06222°W / 51.04778; -114.06222
Construction startedJune 13, 2007
Topped-outNovember 2010
Completed2012
Cost$1.4 billion CAD
OwnerH&R REIT[2]
Height
Roof236 m (774 ft)
Technical details
Floor count58 floors
53 office floors
2 retail floors
4 mechanical floors
3 sky gardens
Floor area2,150,425 sq ft (199,781.0 m2)[1]
Design and construction
Architect(s)Foster + Partners, Zeidler Partnership Architects
DeveloperMatthews Southwest
Structural engineerHalcrow Yolles
Main contractorLedcor Group of Companies

The Bow is a 158,000-square-metre (1,700,000 sq ft) office building for the headquarters of Encana Corporation and Cenovus Energy, in downtown Calgary, Alberta. The 236 metre (774 ft) building is currently the second tallest office tower in Calgary, since construction of Brookfield Place; and the third tallest in Canada outside Toronto.[3] The Bow is also considered the start of redevelopment in Calgary's Downtown East Village.[4] It was completed in 2012 and was ranked among the top 10 architectural projects in the world of that year according to Azure magazine.[5]

History

Location of The Bow before construction; the York Hotel was to be incorporated in the building complex

Early plans

Encana Corporation, North America's second largest natural gas producer, announced plans for the high-rise in 2006. Early designs suggested that the project would consist of a complex of towers (perhaps two or more) over two blocks. The tallest of these towers could be 60 stories tall, which would make it taller than the current tallest tower in Western Canada, the Suncor Energy Centre (also in Calgary). The initial proposal was for a tower of 300 m (980 ft), making it the tallest building in Canada.[6]: 367  Early sources suggested a two tower complex spanning the entire surface of two blocks, with a second tower of 40 to 50 stories connected at sixth stories level over 6 Avenue.[7] Official statements declared that the tower will be 58 stories, or 247 metres (810 ft) tall.

The management company in charge of the project was Texas-based Matthews Southwest, with architectural services furnished by UK-based Foster + Partners and Zeidler Partnership Architects of Calgary.[8]

Announcement of The Bow

Sky high clubs at Floors 55 and 56

The project filed for development permit application is called The Bow, for its crescent shape and the view of the Bow River.[8] On October 12, 2006, Foster + Partners revealed the first designs for the new tower.[9]

Plans called for the project to house two separate companies, both equally occupying the space: Encana Natural Gas, with over 3,000 Calgary-based employees; and Cenovus Energy's more than 3,600 Calgary-based staff. Both companies were located at multiple sites throughout the downtown core. With an estimated 158,000-square-metre total office space, the complex was expected to be the city's largest. Construction started in June 2007, and the building opened in June 2013 with a final cost of $1.4 billion.[10] The tower was lowered down to 236 m due to shadowing concerns and is the 149th tallest building in the world.

On February 9, 2007, EnCana sold The Bow office project assets to H&R Real Estate Investment Trust for $70 million,[11] while signing a 25-year tenant lease agreement that was to start after the project's completion.

In late June 2007, the company announced that the Portrait Gallery of Canada would not be moving from Ottawa into the Bow.[12]

Construction

Groundbreaking took place on June 13, 2007, with work starting on both sides of 6 Avenue South between Centre Street and 1st Street East.[13] Sixth Avenue was excavated, after closure of the block (August 21, 2007)[14] and the six level underground parkade was constructed on a two block area, on both north and south side of 6th Avenue.

A neighbouring historic building – The York Hotel, built 1929–1930 in the Edwardian Commercial Architectural style – was demolished to make room for the new building. Because of the historical significance of the York Hotel, it was important to save as much as reasonable to incorporate into the new structure. Between 70 and 80 percent of the bricks were saved and used to reconstruct two of the hotel’s exterior walls. The brown brick originally supplied by Clayburn Brick in Abbotsford and the cast-in-concrete friezes have been removed, numbered and graphed to show the original location the brick and friezes were installed on the new building in their original locations. The remainder of the building was demolished ahead of schedule by Calgary-based demolition and environmental contractor Hazco.

The concrete foundation was continuously poured over 36 hours on May 11 and 12, 2008, being the largest of its kind in Canada, and third largest in the world after the Howard Hughes Center in Los Angeles and the Sama Tower (Al Durrah Tower) in Dubai.[15] Some 14,000 cubic metres (18,000 cu yd) of concrete filled the 3,000-square-metre (30,000 sq ft) foundation.

Erection of the above-ground steel superstructure began in October 2008 with the installation of the first of two Favelle Favco heavy-lift tower cranes.

Construction was briefly halted in December 2008 due to a $400 million shortage of financing needed to finish the job.[16] The project continued to move forward, despite the unresolved financing issues.[17] In April 2009, a secondary tower in the project, the 200,000-square-foot (19,000 m2) building planned for a block south of the main tower, was put on hold for at least two years. The main tower, however, was set to continue, having secured the remaining $475 million required for completion of the structure.[18]

On July 8, 2010, the Bow surpassed Suncor Energy Centre as Calgary's highest building.[19] The 215 metres (705 ft) tall Suncor Energy Centre was the highest building in Calgary since 1984. The addition of a steel girder, part of floors 55 to 57, raised the Bow tower to 218 metres (715 ft). In November 2010 the Bow would be topped off at 234 metres.[20]

Public art

Wonderland Sculpture located at the entrance of the building

Encana officially confirmed on June 16, 2008, that Jaume Plensa, an artist most famous for the Crown Fountain in Chicago, had been chosen to complete two major public art installations for the project.[21] The first work, entitled Wonderland, was unveiled on January 25, 2013, on the south plaza.[22][23] The second work, entitled Alberta's Dream is located on the north side and depicts a bronze casting of the artist embracing a living tree.[24]

There is an observation deck on the 54th floor that gives the visitors views of Alberta.[citation needed] Floors 55 and 56 are home to the private meeting, lounges, conference center and sky high clubs.[citation needed]

Building details

  • Height: 236 metres (774 ft)[25]
  • 58 stories
    • 2 retail floors - 200,000 square feet (19,000 m2)
    • 3 floors - sky gardens, spaced approximately every 18 floors (sky lobbies), served by express elevators
    • 53 office floors - 1,700,000 square feet (160,000 m2)
    • 4 mechanical floors
    • In total over 84,000 square metres (900,000 sq ft) of glass
  • Footprint: 190,000 square feet (18,000 m2)
  • Parking: 1,400 parking stalls (6 level parkade, spanning two blocks on both sides of 6th Avenue)
  • +15 skywalk connections to neighbouring buildings (First Tower, Suncor Energy Centre)
[26]

See also

References

  1. ^ "The Bow". Skyscraper Center. Council on Tall Buildings and Urban Habitat. Retrieved September 10, 2017.
  2. ^ "Calgary's Most Beautiful Building" (PDF). The Bow Building. Archived from the original (PDF) on May 16, 2011. Retrieved September 12, 2015.
  3. ^ "The Bow rises as Calgary's tallest building". CBC News. July 8, 2013. Retrieved September 12, 2015.
  4. ^ "Calgary's future skyline unveiled". Calgary Herald. October 13, 2006. Archived from the original on September 23, 2015. Retrieved September 12, 2015.
  5. ^ Osborne, Catherine (December 20, 2012). "2012 in Review: Top 10 Projects". Azure. Retrieved September 12, 2015.
  6. ^ Al-Kodmany, K. (June 25, 2018). The Vertical City: A Sustainable Development Model. ISBN 9781784662578.
  7. ^ Beatty, Bob (November 23, 2005). "Project could loom over Calgary skyline". Businessedge. Retrieved September 12, 2015.
  8. ^ a b "EnCana's unveils The Bow — Calgary's newest tower" (Press release). EnCana. October 12, 2006. Archived from the original on March 1, 2007. Retrieved September 12, 2015. {{cite press release}}: Cite has empty unknown parameter: |1= (help)
  9. ^ "Projects: The Bow, Calgary 2005-2013". Foster + Partners. Retrieved September 12, 2015.
  10. ^ "The Bow tower officially opens in Calgary". CBC News. June 4, 2013. Retrieved September 12, 2015.
  11. ^ "EnCana advances The Bow office project" (Press release). EnCana. February 9, 2007. Archived from the original on March 18, 2007. Retrieved September 12, 2015.
  12. ^ "EnCana Tower Construction Underway". Calgary Herald. June 13, 2007. Archived from the original on November 10, 2012. Retrieved September 12, 2015.
  13. ^ "Dreaded downtown closure begins". Calgary Herald. August 21, 2007. Archived from the original on March 4, 2016. Retrieved September 12, 2015.
  14. ^ "Concrete pour smashes record". Calgary Herald. May 11, 2008. Archived from the original on August 30, 2009. Retrieved May 13, 2008.
  15. ^ "A sticky ending for the tar sands". The Economist. January 15, 2009. Retrieved September 11, 2015.
  16. ^ Baker, Linda (January 2009). "A Boom in Office Towers in Calgary". The New York Times. Retrieved September 11, 2015.
  17. ^ Vanderklippe, Nathan (April 1, 2009). "Plans for Calgary's Bow tower to go ahead". The Globe and Mail. Toronto. Retrieved September 12, 2015.
  18. ^ "The Bow rises as Calgary's tallest building". CBC News. Calgary. August 8, 2010. Retrieved September 12, 2015.
  19. ^ "The Top of Calgary". Calgary Herald. November 27, 2010. p. C5.
  20. ^ "Calgary's Wonderland sculpture joins global collection of Jaume Plensa heads". Calgary Sun. January 29, 2013. Retrieved September 12, 2015.
  21. ^ "Inspiring places and spaces: unveiling Wonderland". Encana. Retrieved September 12, 2015.
  22. ^ "Bow Building head statue installation complete". CBC News. January 27, 2013. Retrieved September 12, 2015.
  23. ^ Jarvie, Michele (May 2, 2013). "Alberta's Dream bronze sculpture of a man hugging a live tree by Barcelona artist Juame Plensa outside The Bow tower". Calgary Herald. Retrieved September 12, 2015.
  24. ^ "The Bow, Calgary". Emporis. Retrieved September 12, 2015.
  25. ^ "Specifications". The Bow Building. Retrieved September 12, 2015.
Wikimedia Commons has media related to The Bow (skyscraper).
Preceded by Tallest building in Calgary
2010-2017
236 m 		Succeeded by
Retrieved from "https://en.wikipedia.org/w/index.php?title=The_Bow_(skyscraper)&oldid=971877421"