<Table> <Tr> <Th_colspan="2"> Space Needle </Th> </Tr> <Tr> <Td_colspan="2"> The Space Needle flying the flag of the United States on Independence Day (4 July 2011). </Td> </Tr> <Tr> <Th_colspan="2"> Record height </Th> </Tr> <Tr> <Td_colspan="2"> Tallest in Seattle and Washington state from 1962 to 1969 </Td> </Tr> <Tr> <Th> Preceded by </Th> <Td> Smith Tower </Td> </Tr> <Tr> <Th> Surpassed by </Th> <Td> Safeco Plaza </Td> </Tr> <Tr> <Th_colspan="2"> General information </Th> </Tr> <Tr> <Th> Status </Th> <Td> Complete </Td> </Tr> <Tr> <Th> Type </Th> <Td> Observation tower </Td> </Tr> <Tr> <Th> Location </Th> <Td> 400 Broad Street Seattle, Washington 98109 </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 47 ° 37 ′ 13" N 122 ° 20 ′ 57" W ﻿ / ﻿ 47.6204 ° N 122.3491 ° W ﻿ / 47.6204; - 122.3491 ﻿ (Space Needle) Coordinates: 47 ° 37 ′ 13" N 122 ° 20 ′ 57" W ﻿ / ﻿ 47.6204 ° N 122.3491 ° W ﻿ / 47.6204; - 122.3491 ﻿ (Space Needle) </Td> </Tr> <Tr> <Th> Construction started </Th> <Td> April 17, 1961 </Td> </Tr> <Tr> <Th> Completed </Th> <Td> December 8, 1961 </Td> </Tr> <Tr> <Th> Opening </Th> <Td> April 21, 1962 </Td> </Tr> <Tr> <Th> Owner </Th> <Td> Space Needle Corporation </Td> </Tr> <Tr> <Th_colspan="2"> Height </Th> </Tr> <Tr> <Th> Antenna spire </Th> <Td> 184.41 m (605.0 ft) </Td> </Tr> <Tr> <Th> Top floor </Th> <Td> 158.12 m (518.8 ft) </Td> </Tr> <Tr> <Th_colspan="2"> Technical details </Th> </Tr> <Tr> <Th> Floor count </Th> <Td> 6 </Td> </Tr> <Tr> <Th> Lifts / elevators </Th> <Td> </Td> </Tr> <Tr> <Th_colspan="2"> Design and construction </Th> </Tr> <Tr> <Th> Architect </Th> <Td> John Graham & Company </Td> </Tr> <Tr> <Th> Structural engineer </Th> <Td> John K. Minasian Victor Steinbrueck </Td> </Tr> <Tr> <Th> Main contractor </Th> <Td> Howard S. Wright Construction Co </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> Seattle Landmark </Th> </Tr> <Tr> <Th> Designated </Th> <Td> April 19, 1999 </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> References </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Space Needle </Th> </Tr>

How long did it take to build the seattle space needle
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