 The altogether long Hambaek–Jodok link was completed on December 30, 1976.The electrification of altogether around the Hambaek Line went into service on April 1, 1977.The first of the line from Jecheon to Ssangyong, which is nearing capacity with cement transport and mass transit, is being double-tracked for a higher capacity with a budget of 377.323 billion won, with a targeted opening in 2011.