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CN Tower Facts And Information | Cn Tower Compared to other structures
CN Tower Facts And Information
| 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 CN Tower: |
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: $63 million |
| Adjusted cost (1999 dollars): $260 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 $26 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. |
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CN Tower in comparison with other world structures.
| Building and location |
Height(Metres) |
Height(Feet) |
| CN Tower, Toronto Canada |
553 m |
1,815 ft |
| Ostankino Tower, Moscow Russia |
540 m |
1,771 ft |
| Sears Tower, Chicago, USA |
520 m |
1,707 ft |
| Oriental Pearl Tower, Shanghai China |
468 m |
1,535 ft |
| John Hancock, Chicago, USA |
444 m |
1,455 ft |
| Empire State Building, New York USA |
443 m |
1,454 ft |
| Menora KL, Kuala Lumpur Malaysia |
421 m |
1,403 ft |
| Tian Tower, Tianjin China |
415 m |
1,362 ft |
| Central Radio and TV Tower, Beijing China |
405 m |
1,329 ft |
| Tashkent Tower, Tashkent, Uzbekistan |
375 m |
1,230 ft |
| The Fernsehturm, Berlin Germany |
368 m |
1,207 ft |
| The Stratosphere, Las Vegas, USA |
350.3 m |
1149 ft |
| Tokyo Tower, Toyko Japan |
333 m |
1,092 ft |
| Sky Tower, Auckland New Zealand |
328 m |
1,076 ft |
| Eiffel Tower, Paris France |
320 m |
1.049 ft |
| AMP Tower, Sydney Austrailia |
304 m |
1,000 ft |
| Olympic Tower, Munich |
290 m |
951 ft |
| Collserola Tower, Barcelona Spain |
288 m |
945 ft |
| Rialto Towers, Melbourne, Australia |
253 m |
832 ft |
| The Donauturm, Vienna Austria |
252 m |
827 ft |
| Seoul Tower, Seoul South Korea |
237 m |
777 ft |
| Tower of the Americas, San Antonio, USA |
228.6 m |
750 ft |
| Telstra Tower, Canberra |
195 m |
640 ft |
| The Calgary Tower |
190.8 m |
626 ft |
| The Euromast, Rotterdam Holland |
185 m |
607 ft |
| The Space Needle, Seatle, USA |
184 m |
605 ft |
| Latinoamericana Tower, Mexico City Mexico |
181 m |
595 ft |
| Harbour Centre Tower, Vancouver Canada |
177 m |
581 ft |
| Olympic Tower, Montreal Canada |
175 m |
575 ft |
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source: University of Portsmouth [ Civil Engineering ] http://www.port.ac.uk
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