The Manp'o Line is an electrified standard-gauge trunk line of the North Korean State Railway running from Sunch'à Ân on the P'yà Ângra Line to Manp'o on the Pukpu Line. The line continues on from Manp'o to Ji'an, China.
The length of the line from Sunch'à Ân Station to Manp'o Ch'à Ângnyà Ân Station is ; it is another to the border, making the total length from Sunch'à Ân to the border . It also connects to the Kaech'à Ân, P'yà Ângdà Âk, Ch'à Ângnyà Ân P'arwà Ân, Unsan and Kanggye Lines. Not including Sunch'à Ân, there are 44 stations on the line; the average distance between stations is .
The Manp'o Line runs in the northwestern part of Korea along the banks of the Ch'à Ângch'à Ân and Changja rivers. It is an important trunk line connecting ten cities, counties and districts in South P'yà Ângan, North P'yà Ângan and Chagang provinces. This connection is particularly important to the economies of North P'yà Ângan and Chagang provinces; a great deal of coal is moved from mines along the Manp'o Line to various power plants and factories in the country.
With the exception of Sunch'à Ân station, which is administered by the P'yà Ângyang Railway Bureau, the entirety of the Manp'o line from Chungp'yà Âng to Manp'o is under the jurisdiction of the Kaech'à Ân Railway Bureau.
Due to the terrain it traverses, the Manp'o Line has a large number of tunnels, bridges and fills. The ruling grade is 24.5â° and the minimum curve radius is . There are 180 bridges totalling in length, and 53 tunnels totalling in length. of the line - 41% of the total length - is laid with heavy rail, and 5% of the line is laid on concrete sleepers.
The Kaech'à ÂnâÂÂCh'à Ândong section was originally a narrow gauge line opened on 1 December 1918 by the Mitsui Mining Railway (미츠ì´ ê´Âì° ì Âì© ì² ëÂÂ, Mich'à Âi Kwangsan Chà Ân'yong Ch'à Âldo; ä¸ÂäºÂé±山å°Âç¨éÂÂéÂÂ, Mitsui Kà Âzan Sen'yà  Tetsudà Â) as an extension to its SinanjuâÂÂKaech'à Ân mainline; in 1927 the company was renamed Kaech'à Ân Light Railway (ê°Âì² ê²½ë³Âì² ëÂÂ, Kaech'à Ân Kyà Ângbyà Ân Ch'à Âldo ; ä»·å·Â軽便éÂÂéÂÂ, Kaisen Keibentetsudà Â), and then was leased to the Chosen Government Railway (Sentetsu) on 1 November 1932.
Sentetsu opened the Sunch'à ÂnâÂÂCh'à Ândong line on 1 November 1932, and at the same time began converting the Kaech'à ÂnâÂÂCh'à Ândong section to standard gauge; this work was completed on 15 July 1933. On 1 September 1933 the two lines were merged and named the Manp'o Line, which on 15 October 1933 was extended with the opening of the section from Kaech'à Ân to Kujang. Sentetsu subsequently extended the line several times, reaching Hà Âich'à Ân on 1 November 1934 ( from Kujang), Kaego on 1 October 1935 ( from Hà Âich'à Ân), Chà Ânch'à Ân on 1 December 1936 ( from Kaego), and Kanggye on 1 December 1937, with a section of line from Chà Ânch'à Ân. The final section finishing the line, from Kanggye to Manp'o, was opened on 1 February 1939.
After completing the entire line, Sentetsu opened the Ji'an Yalu River Border Railway Bridge on 31 July 1939, connecting the Manp'o Line to the Manchukuo National Railway's Meiji Line from Ji'an to Meihekou. New stations and branch lines along the line were also added: à Âryong station was opened on 1 May 1941, and from there, the Ryongmun Line on 1 September of that year; Ramjà Ân station was opened on 16 September 1941, and Chungsà Ânggan station was opened on 1 November 1942.
After the partition of Korea following the end of the Pacific War and the liberation of Korea, the entire line was located in North Korea and was nationalised by the Provisional PeopleâÂÂs Committee for North Korea, along with all other railways in the Soviet occupation zone, on 10 August 1946, and subsequently becoming part of the Korean State Railway after the establishment of the DPRK.
In 1948, the electrification of the section from Kaegu to Koin was completed, but this was subsequently destroyed during the Korean War. The re-electrification of the line began in 1975 with the completion of the section from HÃ Âich'Ã Ân to Koin, followed by the Kaech'Ã Ân - HÃ Âich'Ã Ân section in 1979; the remaining sections, from Koin to Manp'o and from Kaech'Ã Ân to Sunch'Ã Ân, were completed in 1980.
Freight trains serve the major industries along the line, such as textiles in Kanggye and rubber and cement plants in Manp'o. Coal and forest products are also important commodities shipped on this line. The line is also an important artery for freight traffic to and from China. Due to the large amount of coal shipped on the line, freight traffic towards Sunch'Ã Ân is three times greater than the amount of freight moved from Sunch'Ã Ân towards Manp'o.
Most of the coal traffic from Kujang towards Sunch'à Ân supplies Chagang Province with fuel; in the other direction, from Kujang towards Manp'o, coal shipped on the line is for local use for heating, and for large factories at Ch'agap'yà Âng and Mun'ak on the Pukpu Line. 58% of all freight traffic between Kanggye and Manp'o is wood.
In terms of freight traffic, Kaech'à Ân and Kujang are the most important stations on the line. Kaech'à Ân is the starting point of the Kaech'à Ân Line, which connects the Manp'o line to the P'yà Ângà Âi Line at Sinanju, and of a branch to the large colliery at Choyang. Other important coal mines in the area are at Ramjà Ân, Pongch'à Ân Colliery and at Kaech'à Ân; this area accounts for 20% of the DPRK's anthracite production. Kujang, which is the point where the Manp'o Line connects to the P'yà Ângdà Âk and Ch'à Ângnyà Ân P'alwà Ân lines, is the location of a major cement factory that supplies much of North P'yà Ângan province; cement is the major outbound commodity originating at Kujang.
Hà Âich'à Ân, Chà Ânch'à Ân and Kanggye are major loading points for freight from areas not served by rail. Hà Âich'à Ân station is where freight from Tongsin County is transferred to trains, Kanggye station for freight from Usi, Chosan, Wiwà Ân, Hwap'yà Âng and Changgang counties, and Chà Ânch'à Ân for freight from Kopung and Ryongrim counties.
The following passenger trains are known to operate on this line and its branches:
An international passenger service from Manp'o to Ji'an exists in the form of a single passenger car attached to the daily cross-border freight train. This train is not open to use by foreigners other than ethnic Koreans from China.
Commuter trains also operate on this line between Sunch'à Ân and Kaech'à Ân (four pairs), Kanggye and Chungsà Ânggan (five pairs), Hà Âich'à Ân Ch'à Ângnyà Ân and Koin (two pairs) and Hà Âich'à Ân Ch'à Ângnyà Ân and Kaego Ch'à Ângnyà Ân (one pair). These trains are intended to serve local workers, and stop at all stations.
A yellow background in the "Distance" box indicates that section of the line is not electrified.