The whole-line tunnel of Changsha Metro Line 1 North Extension Phase I Project was drilled through on March 29 as the left-line tunnel linking Eyangshan Station with Xiufengshan Station was holed through that day. The first phase of Line 1 north extension starts at Jinpenqiu Station and ends at Kaifu District Government Station, with a total length of about 9.88 km. (Photo/Gu Pengbo, Hunan Daily)

The whole-line tunnel of Changsha Metro Line 1 North Extension Phase I Project was drilled through on March 29 as the left-line tunnel linking Eyangshan Station with Xiufengshan Station was holed through that day. The first phase of Line 1 north extension starts at Jinpenqiu Station and ends at Kaifu District Government Station, with a total length of about 9.88 km. (Photo/Gu Pengbo, Hunan Daily)

The whole-line tunnel of Changsha Metro Line 1 North Extension Phase I Project was drilled through on March 29 as the left-line tunnel linking Eyangshan Station with Xiufengshan Station was holed through that day. The first phase of Line 1 north extension starts at Jinpenqiu Station and ends at Kaifu District Government Station, with a total length of about 9.88 km. (Photo/Gu Pengbo, Hunan Daily)

Source: en.changsha.gov.cn