CN Tower

The CN Tower is one of the tallest buildings in the world only surpassed by the Burj Dubai and is also Canadas most recognizable icon.

• The CN Tower was built by the Canadian National Railway.
• At 181 storeys, 553.33m (1,815 ft., 5 in.) it is the world's tallest building and free-standing structure
• Height of: Glass Floor - 113 storeys - 342m (1,122ft.) Look Out Level - 114 storeys- 346m (1,136ft.) Sky Pod - 147 storeys- 447m (1,465ft.)
• At the base of the CN Tower: * Circumference - 109.1m (358ft.) * Radius - 33.2m (109.2 ft.) * Diameter - 66.6m (218.4 ft.)
• Located at a: * latitude of 43 degrees 28 mins 36 sec North * longitude of 79 degrees 23 mins 15 sec West
• Opened to the public on June 26, 1976
• Official opening on October 1, 1976
• Original cost: million
• Adjusted cost (1999 dollars): 0 million
• Construction started on February 6, 1973
• Total construction time: 40 months
• Tower sphere construction (middle portion) started on August 1974
• Antenna construction started on March 1975
• Construction of The Tower was completed on February 22, 1974, and the antenna was completed on April 2, 1975
• Number of construction workers: 1,537
• Total weight of the Tower: 117,910 metric tonnes (130,000 tons)
• Volume of concrete: 40,523.8 cubic metres (53,000 cubic yards)
• Tensioned steel: 128.7km (80 miles)
• Reinforcing steel: 4,535 metric tonnes (5,000 tons)
• Structural steel: 544.2 metric tonnes (600 tons)
• Number of elevators: 6 (including 2 which officially opened March 20, 1997)
• Speed of elevators: 6 metres/second (20 feet/second)
• Slow speed of elevators (in high winds): 1.5 metres/second (5 feet/second)
• Attendance: about 2 million per year
• Total staff (off season): approximately 400
• Total staff (peak season): approximately 550 · Maximum sway in 190 km/h winds with 320 km/h gusts (120 mph winds with 200 mph gusts): *Antenna: 6 ft., 8 in. from centre * Sky Pod: 3 ft., 4 in. from centre * Tower Sphere: 1 ft., 7 in. from centre
• Windows: Double-pane armour-plated
• Thickness of windows: Outer pane - 9.5 mm (3/8 inch), inner pane - 6.4 mm (1/4 inch)
• Glass Floor was opened on June 26, 1994
• 360 Restaurant was opened on April 25, 1995
• The Wine Cellar in 360 Restaurant was opened on May 13, 1997
• Capacity of 360, The Restaurant at the Tower: 400 people
• Time for 360 Restaurant to revolve once: 72 minutes
• Capacity of Horizons Café: 500 people
• The opening of the million entertainment expansion, which was completed in nine months, took place on June 26, 1998
• Broadcast Facilities: UHF, VHF Television; FM Radio; Microwave Transmissions; Fixed Mobile Systems
• Companies that broadcast from the Tower: § CBC Channel 5 & 25, CFMT 47, CFTO 9, City 57, Global/CIII 41, TV Ontario 19, LOOK Communications (Digital), CHFI/Rogers, CFNY FM, CHIN FM, CHUM FM, CILQ FM, CJEZ FM, CJRT FM, CKFM FM, Bell Canada, Cantel, Motorola, TTC
• Thickness of The Glass Floor: 2 1/2 ". Layers, from the top down: * 3/16" scuff plate (replaced annually) * Two 1/2" layers of clear tempered glass, laminated together * A one inch layer of air (for insulation) * Two 1/4" layers of clear tempered glass, laminated together * Size of each panel: 42" by 50" * Load tests are performed annually on each panel to ensure safety.

CN Tower Wiki Page - http://en.wikipedia.org/wiki/CN_Tower

• CN Tower Wiki Page -
  

Before they erected the CN Tower The Construction Company that built the tower built the first part of Trent University in Peterborough, Ontario, but tyhen they were known as Foundation Construction Company Of Canada as I worked in their office as secretary & payroll clerk.