[1] Chōtetsu then extended the line in several stages, first reaching Yecheon on 1 November 1928, then reaching Gyeongbuk Andong on 16 October 1931; however, the latter section was dismantled in 1944 to use the material elsewhere as Japan's military faced material shortages during the Pacific War.

Following the 1961 coup, the Supreme Council for National Reconstruction started South Korea's first five-year plan, which included a construction program to complete the railway network, to foster economic growth.

[2] The complete line is 115.2 km (71.6 mi) long, and remains single-tracked and unelectrified.

[1] As of 2010, the line is served by both passenger and freight trains along its entire length, as is the Mungyeong branch.

[1] As of November 2010, the line is served by Mugunghwa cross-country trains from Busan and Dongdaegu, which travel in 2 hours 12 minutes from Gimcheon to Yeongju.