When turquoise one is map colour what is length?
Name Map colour First operated Type Length No. Sta Current Stock Future Stock Trips per annum (×1000) Avg. trips per mile (×1000)
text text real text text real text text real real
1-17839-1
Bakerloo line Brown 1906 Deep Tube 23.2km 14.5 mi 25 1972 Stock N/A 111136 7665
Central line Red 1900 Deep Tube 74 .0 km 46 .0 mi 49 1992 Stock N/A 260916 5672
Circle line Yellow 1871 Sub surface 27.2km 17 .0 mi 36 C Stock S Stock S Stock (Currently replacing C Stock) 114609 4716
District line Green 1868 Sub surface 64 .0 km 40 .0 mi 60 C Stock and D78 Stock S Stock from 2014 208317 5208
Hammersmith & City line Pink 1864 Sub surface 25.5km 15.9 mi 29 C Stock S Stock S Stock (Currently replacing C Stock) 114609 4716
Jubilee line Silver 1979 Deep Tube 36.2km 22.5 mi 27 1996 Stock N/A 213554 9491
Metropolitan line Purple 1863 Sub surface 66.7km 41.5 mi 34 S Stock N/A 66779 1609
Northern line Black 1890 Deep Tube 58 .0 km 36 .0 mi 50 1995 Stock N/A 252310 7009
Piccadilly line Dark Blue 1906 Deep Tube 71 .0 km 44.3 mi 53 1973 Stock N/A 210169 4744
Victoria line Light Blue 1968 Deep Tube 21 .0 km 13.3 mi 16 2009 Stock N/A 199988 15093
Waterloo & City line Turquoise 1898 Deep Tube 2.5km 1.5 mi 2 1992 Stock N/A 15892 10595
table_17839_1
SELECT Length FROM table WHERE Map colour = Turquoise
Turquoise