Early plans EnCana Corporation (now
Ovintiv), 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 initial proposal was for a tower of , which would have made it the second tallest building in Canada. 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. Official statements declared that the tower will be 58 stories, or 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.
Announcement of The Bow The project filed for development permit application is called The Bow, for its
crescent shape and the view of the
Bow River. The design of The Bow takes its form from an unbuilt 1996 Foster + Partners concept for
London's Millennium Tower. The final tower stands 11 meters short of the original plan after concerns were raised regarding the shadow cast upon Bow River pathways. Encana sold The Bow office project assets to
H&R Real Estate Investment Trust in 2007 for $70 million, while signing a 25-year tenant lease agreement that was to start after the project's completion. Encana expected to occupy the entire tower. In late June 2007, the company announced that the
Portrait Gallery of Canada would not be moving from Ottawa into the Bow.
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. Sixth Avenue was excavated, after closure of the block (August 21, 2007) 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. Some of concrete filled the 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. The project continued to move forward, despite the unresolved financing issues. In April 2009, a secondary tower in the project, the 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. On July 8, 2010, the Bow surpassed
Suncor Energy Centre as Calgary's highest building. The 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 . In November 2010 the Bow would be
topped off at 234 metres.
Opening and use The Bow officially opened in June 2013 and became the headquarters of Encana Corporation and
Cenovus Energy, which had been
spun-off from Encana in 2009. Cenovus was announced as anchor tenant in the proposed
Brookfield Place in August 2013, and completed the move to Brookfield Place in 2019. Also in 2019, Encana announced it would be renamed to Ovintiv and would move its corporate headquarters to
Denver, Colorado. ==Public art==