Unnyul Line

Ŭnnyul Line
Overview
Native name	은률선(殷栗線)
Status	Operational
Owner	West Chosen Development Railway (1920–1923) Chosen Railway (1923–1944) Chosen Government Railway (1944–1945) Korean State Railway (since 1945)
Locale	North Hwanghae South Hwanghae
Termini	Ŭnp'a Ch'ŏlgwang
Stations	18
Service
Type	Heavy rail, Passenger/Freight Regional rail
History
Opened	Stages from 1920-1971
Closed	1971 (Sariwŏn - Chaeryŏng)
Technical
Line length	117.8 km (73.2 mi)
Number of tracks	Single track
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Old gauge	762 mm (2 ft 6 in)
Minimum radius	300 m (980 ft)
Maximum incline	15‰
Route map Legend P'yŏngbu Line 0.0 Sariwŏn Ch'ŏngnyŏn P'yŏngbu Line Hwanghae Ch'ŏngnyŏn Line 1.5 West Sariwŏn Closed 3.6 Migok Closed (bridge appx 125 m (410 ft)) 8.1 Sŏjong Closed Hwanghae Ch'ŏngnyŏn Line 0.0 Ŭnp'a Hwanghae Ch'ŏngnyŏn Line (bridge appx 150 m (490 ft)) Ŭnp'ach'ŏn (bridge appx 55 m (180 ft)) 5.2 Yangdong (bridge appx 30 m (98 ft)) 11.9 Samgang Closed Sahae Line (bridge appx 415 m (1,362 ft)) (bridge appx 355 m (1,165 ft)) Chaeryŏng River Taeryŏng Canal 16.0 Kŭmsan Closed 11.3 Kŭmsan quarry (bridge appx 40 m (130 ft)) (bridge appx 45 m (148 ft)) 7.9 Chaeryŏng Ch'ŏksoch'ŏn (bridge appx 45 m (148 ft)) 22.2 25.0 Paeksŏk 15.4 Changch'on Closed 32.4 Sinch'ŏn Onch'ŏn Closed 28.7 Sinch'ŏn Onch'ŏn 32.7 Sinch'ŏn 35.1 Sinch'ŏn Closed 37.6 41.3 Hwanghae Ryongmun 42.5 46.2 Munhwa Closed Samch'ŏn Catfish Breeding Plant 48.0 51.7 Samch'ŏn 51.5 55.2 Wŏlbong Closed (bridge appx 60 m (200 ft)) 54.7 57.4 Yach'on (bridge appx 60 m (200 ft)) 60.4 63.1 Sugyo Changyŏn Line Namdaech'ŏn (bridge appx 70 m (230 ft)) 64.5 Kut'an Closed (tunnel appx 75 m (246 ft)) (bridge appx 80 m (260 ft)) 69.7 Songhwa (tunnel appx 125 m (410 ft)) (bridge appx 55 m (180 ft)) 78.8 Sansu (bridge appx 55 m (180 ft)) (bridge appx 30 m (98 ft)) 87.2 Kwail (Kwail Orchard loading spur) (bridge appx 60 m (200 ft)) 96.8 Sindae (bridge appx 55 m (180 ft)) Han'ilch'ŏn (bridge appx 210 m (690 ft)) 107.5 Ŭnnyul (bridge appx 55 m (180 ft)) (bridge appx 45 m (148 ft)) (bridge appx 45 m (148 ft)) 114.0 Kŭmsanp'o (bridge appx 35 m (115 ft)) 117.8 Ch'ŏlgwang (iron ore mine) Ryongjŏng Line Closed Sŏhae Kammun Line

The Ŭnnyul Line is a non-electrified standard-gauge secondary line of the Korean State Railway in the North and South Hwanghae provinces of North Korea, running from Ŭnp'a to Ch'ŏlgwang.^[1] It is an important line in economic terms, connecting the agricultural and ore-producing areas of Kwail and Ŭnnyul counties with the rest of the DPRK.^[2]

The line connects to the Hwanghae Ch'ŏngnyŏn Line at Ŭnp'a, to the Changyŏn Line at Sugyo, and to the Sŏhae Kammun Line at Ch'ŏlgwang, and formerly connected to the narrow gauge Ryongjŏng Line at Ch'ŏlgwang.^[1] The ruling grade is 15‰, the minimum curve radius is 300 m; there are 67 bridges with a total length of 2,515 m (8,251 ft), but only two tunnels with a total length of 200 m (660 ft).^[2]