Line 3 (Shenzhen Metro)
Second stage

Segment
Commencement
Length
Station(s)
Name
Caopu — Shuanglong
28 December 2010
25.138 km (15.62 mi)
16
Phase 1 (elevated section)
Yitian — Caopu
28 June 2011
16.522 km (10.27 mi)
14
Phase 1 (underground section) & Phase 2

Question: How big was the first phase of line 3?
Answer: Line 3's first phase has 16 stations, with a length of 25.138 km (15.620 mi).