The Chà Ângdo Line is an electrified standard-gauge secondary line of the Korean State Railway in South Hwanghae Province, North Korea, running from Wangsin station on the Ongjin Line to Chà Ângdo station.
Established in 1923 through the merger of six smaller railways, by the mid 1930s the Chosen Railway (Chà Âtetsu) had become the largest privately owned railway in colonial Korea, and had built an extensive network of narrow gauge rail lines in the Hwanghae region. By the end of 1935, this Hwanghae Line network ran Sariwà ÂnâÂÂSamgangâÂÂSugyo, SamgangâÂÂEast HaejuâÂÂHaeju Port, and HaejuâÂÂEast HaejuâÂÂTosà Âng.
On 10 May 1937, Chà Âtetsu opened a short () line from Tongp'o, located on the HaejuâÂÂCh'wiya section (extended to Ongjin on 19 May) of the Hwanghae Line network, to Chà Ângdo to serve the Haeju Port. After Chà Âtetsu sold the Hwanghae Line network to the Chosen Government Railway (Sentetsu) on 1 April 1944, Sentetsu split the network into several different lines; the HaejuâÂÂOngjin section became the Ongjin Line, and the Tongp'oâÂÂChà Ângdo section became the Chà Ângdo Line; this line was eventually extended to the port facilities at T'à Âlsà Âm.
After the end of the Pacific War and the subsequent partition of Korea, the Chà Ângdo Line was located within the territory of the DPRK. After the conversion of the Sariwà ÂnâÂÂHaeju Hwanghae Ch'à Ângnyà Ân Line to standard gauge in 1958, the Chà Ângdo Line was likewise regauged. Electrification of the Chà Ângdo Line was completed in April 1982.
A yellow background in the "Distance" box indicates that section of the line is not electrified.