Kumgol Line

Kŭmgol Line
Overview
Other name(s)Hamnam Line
함남선(咸南線)
Native name금골선
StatusOperational
OwnerChosen Magnesite Development Railway (1943–1945)
Korean State Railway (since 1945)
LocaleSouth Hamgyŏng
Termini
Stations17
Service
TypeHeavy rail, Passenger/freight rail
Regional rail
History
Opened1943 (Yŏhaejin–Paekkŭmsan)
1962 (Paekkŭmsan–Kŭmgol)
after 1988 (Kŭmgol–Muhak)
Technical
Line length83.4 km (51.8 mi)
Number of tracksSingle track
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification3000 V DC Overhead line
Maximum incline26‰
Route map
P'yŏngra Line
Tuŏn Line
0.0
 Yŏhaejin
P'yŏngra Line
(tunnel appx 65 m (213 ft))
1.2
 Ch'ŏn'gok
(tunnel appx 235 m (771 ft))
(bridge appx 50 m (160 ft))
5.5
 Taptong
(tunnel appx 170 m (560 ft))
Puktaech'ŏn
(bridge appx 140 m (460 ft))
9.0
 Kaŭng
(tunnel appx 145 m (476 ft))
(bridge appx 175 m (574 ft))
(tunnel appx 205 m (673 ft))
14.1
 Kwangch'ŏn
(bridge appx 80 m (260 ft))
(bridge appx 90 m (300 ft))
19.0
 Unjŏn
(bridge appx 50 m (160 ft))
(bridge appx 140 m (460 ft))
23.3
 Tongdŏk
27.7
 Tong'am
(tunnel appx 175 m (574 ft))
Puktaech'ŏn
(bridge appx 90 m (300 ft))
(tunnel appx 630 m (2,070 ft))
Puktaech'ŏn
(bridge appx 100 m (330 ft))
Puktaech'ŏn
(bridge appx 65 m (213 ft))
(tunnel appx 375 m (1,230 ft))
33.8
 Such'on
Puktaech'ŏn
(bridge appx 100 m (330 ft))
(tunnel appx 500 m (1,600 ft))
Puktaech'ŏn
(bridge appx 140 m (460 ft))
(tunnel appx 395 m (1,296 ft))
36.7
 Sinp'yŏng
(tunnel appx 300 m (980 ft))
Puktaech'ŏn
(bridge appx 120 m (390 ft))
Puktaech'ŏn
(bridge appx 85 m (279 ft))
(tunnel appx 150 m (490 ft))
(tunnel appx 550 m (1,800 ft))
42.8
 Rip'a
Puktaech'ŏn
(bridge appx 115 m (377 ft))
(tunnel appx 660 m (2,170 ft))
Puktaech'ŏn
(bridge appx 100 m (330 ft))
Puktaech'ŏn
(bridge appx 100 m (330 ft))
(tunnel appx 70 m (230 ft))
Puktaech'ŏn
(bridge appx 140 m (460 ft))
(tunnel appx 195 m (640 ft))
Puktaech'ŏn
(bridge appx 130 m (430 ft))
50.3
 Sinjŭngsan
Puktaech'ŏn
(bridge appx 90 m (300 ft))
(tunnel appx 280 m (920 ft))
Puktaech'ŏn
(bridge appx 180 m (590 ft))
Puktaech'ŏn
(bridge appx 130 m (430 ft))
Puktaech'ŏn
(bridge appx 90 m (300 ft))
(tunnel appx 485 m (1,591 ft))
Puktaech'ŏn
(bridge appx 135 m (443 ft))
Puktaech'ŏn
(bridge appx 120 m (390 ft))
magnesite mine
54.8
 Tonsan
(tunnel appx 190 m (620 ft))
Puktaech'ŏn
(bridge appx 140 m (460 ft))
(tunnel appx 105 m (344 ft))
(tunnel appx 350 m (1,150 ft))
(tunnel appx 285 m (935 ft))
Puktaech'ŏn
(bridge appx 80 m (260 ft))
(tunnel appx 230 m (750 ft))
(tunnel appx 80 m (260 ft))
Puktaech'ŏn
(bridge appx 105 m (344 ft))
(tunnel appx 215 m (705 ft))
59.7
 Paekkŭmsan
(bridge appx 120 m (390 ft))
(tunnel appx 145 m (476 ft))
1.5
magnesite mine
(tunnel appx 745 m (2,444 ft))
(tunnel appx 400 m (1,300 ft))
(bridge appx 110 m (360 ft))
(tunnel appx 140 m (460 ft))
0.8
magnesite mine
63.4
 Kŭmgol
magnesite mine
Puktaech'ŏn
(bridge appx 170 m (560 ft))
66.3
 Sindŏk
68.9
 Taesin
Puktaech'ŏn
(bridge appx 130 m (430 ft))
Puktaech'ŏn
(bridge appx 185 m (607 ft))
Puktaech'ŏn
(bridge appx 400 m (1,300 ft))
Puktaech'ŏn
(bridge appx 210 m (690 ft))
(tunnel appx 350 m (1,150 ft))
Puktaech'ŏn
(bridge appx 170 m (560 ft))
Puktaech'ŏn
(bridge appx 90 m (300 ft))
Puktaech'ŏn
(bridge appx 90 m (300 ft))
Puktaech'ŏn
(bridge appx 105 m (344 ft))
Puktaech'ŏn
(bridge appx 120 m (390 ft))
77.3
 Taehŭng
Puktaech'ŏn
(bridge appx 125 m (410 ft))
(tunnel appx 265 m (869 ft))
Puktaech'ŏn
(bridge appx 125 m (410 ft))
(tunnel appx 380 m (1,250 ft))
underground facility
83.4
 Muhak
84.7
Taehŭng Youth Magnesite Mine
(tunnel appx 195 m (640 ft))
Puktaech'ŏn
(bridge appx 65 m (213 ft))
88.7
magnesite mine
Kumgol Line
Chosŏn'gŭl
금골선
Hancha
金골線
Revised RomanizationGeumgolseon
McCune–ReischauerKŭmgolsŏn

The Kŭmgol Line (Korean: 금골선) is an electrified standard-gauge secondary line of the North Korean State Railway running from Yŏhaejin on the P'yŏngra Line to Muhak. Located entirely in Tanch'ŏn city, South Hamgyŏng - one of the DPRK's most important mining areas - freight trains moving ore from the mines on the line to the P'yŏngra Line form the bulk of the line's traffic.

The line is in relatively severe terrain, with a ruling grade of 26‰. There are 45 bridges with a total length of 3,112 m (10,210 ft), and 30 tunnels with a total of 8,241 m (27,037 ft).

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