BASIC IMAGERY INTERPRETATION REPORT WONSAN RAILROAD CAR MANUFACTURING AND ROLLING STOCK REPAIR PLANT WONSAN, NORTH KOREA

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79T00909A001100030002-0
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 12
• Document Creation Date: December 28, 2016
• Document Release Date: May 13, 2008
• Sequence Number: 2
• Publication Date: June 1, 1971
• Content Type: REPORT

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Top Secret
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Industrial Facilities
(Non-Military)
DIRECTORATE OF
INTELLIGENCE
Basic Imagery Interpretation Report
Wonsan Railroad Car Manufacturing
and Rolling Stock Repair Plant
Wonsan, North Korea
Top Secret
RCS 13/0046/71
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DATE JUNE 1971
COPY 117
PAGES 9
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CENTRAL INTELLIGENCE AGENCY
Directorate of Intelligence
Imagery Analysis Service
RCS - 13/0046/71
Wonsan Railroad Car Manufacturing and Rolling Stock Repair Plant
UTM COORDINATES GEOGRAPHIC COORDINATES
39-08-10N 127-28-40E
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MAP REFERENCE
548th RTG. USATC, Series 200, Sheet M0380-9HL, 5th ed, Aug 68, Scale 1:200,000
(SECRET
LATEST IMAGERY USED
Wonsan Railroad Car Manufacturing and Rolling Stock Repair Plant manufactures
and repairs passenger cars and various other rail cars and repairs steam locomo-
tives. The plant probably produces most of the parts needed for these operations.
Steam locomotives, passenger cars and other rail cars have been identified at
the plant. We have not been able to determine the production rate of the
passenger and other rail cars from photography.
The plant contains three final assembly buildings, two final checkout
buildings, aforge/foundry and several probable forges and foundries, two rail
transversers, and numerous storage, support and administration facilities. In
May 1963, the date of the earliest photography used in this study, the plant
was nearing completion. Since that time, two probable paint shops, several
support buildings and workshops, and a holding yard have been added. The
plant has been active on all photographic coverage from May 1963 to April
1970.
This report includes a photograph of the plant, describes the facilities,
discusses operational functions and production activity, and lists the type
and number of rolling stock observed in the plant.
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WO~SAN RAILROAIY CAR MAN6IFACTURI
128
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Wonsan Railroad Car Manufacturing and Rolling Stock Repair Plant is
located 1.5 nautical miles (nm) southeast of Wonsan (see Figure 1). It
is adjacent to the Wonsan Railroad Yards and 1.7 nm south- 25X1
southwest of Wonsan A i rf i e l d 25X1
This was previously the site of the Kalma Railroad Plant built by the
Japanese in the early 1940s. 1/ It was reportedly destroyed when Soviet
troops occupied the area after World War II. It was reconstructed in 1947
and then destroyed a second time during the Korean War. It was rebuilt
with Polish technical aid and became operational in late 1957. 2/
Physical Fratures
Wonsan Railroad Car Plant is in an irregular-shaped walled area approximately
3,500 by 1,300 feet and occupies about 100 acres. It is rail and road served
(see Figure 2).
The main production facilities are three final assembly buildings, two
final checkout buildings, a forge/foundry, a probable forge/foundry, a
probable forge/foundry complex, a probable forge, and a probable foundry. Other
facilities in the plant are three probable paint shops, a probable steam plant,
a possible producer gas plant, a woodworking shop, at least 18 workshops, two
rail transversers, and numerous storage, support and administration facilities.
In May 1963, the date of the earliest photography used in this study, the
plant was nearing completion. Since that time two probable paint shops and
several support buildings and workshops have been added. No additional major
production facilities have been constructed. Between November 1967 and
October 1969, the fenceline was extended to the north to allow construction
of an additional holding yard.
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Operational Functions
This plant manufactures and repairs passenger cars and various other
rail cars and repairs steam locomotives. Most of the parts needed for these
operations are probably produced on site in the various forge, foundry,
woodworking, and workshop facilities. There are separate final assembly
buildings for the manufacture or repair of passenger cars (Item 22, Figure 2)
and other types of rail cars (Item 21). A third large assembly building
(Item 28) is used for repairs to steam locomotives. The rail transverser is
for moving heavy parts, subassemblies, or partially completed equipment from
one building to another or from one bay to another in the same building.
Production Activity
This plant has been active on all photographic coverage from May 1963'
to April 1970. However, it has not been possible to determine the production
rate of rail cars or the number of cars or locomotives repaired. Poor-quality
coverage precluded an accurate count of rolling stock present before April
1968. Since that time the coverage has not been frequent enough to determine
whether the rolling stock was newly manufactured, repaired, or transported
raw materials to the plant.
Table 1 lists the number of locomotives and rail cars observed in the
plant from April 1968 to April 1970.
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Type
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Steam
Locomotives
Probable
Possible
Possible Switch
Engines
3
10
Passenger Cars
Probable
Possible
14
2
Gondola Cars
21
9
Probable
5
23
Possible
5
2
Hopper Cars
Probable
Possible
Boxcars
16
1
5
Probable
3
5
11
9
Possible
7
10
8
13
Flatcars
41
18
Probable
1
1
Possible
1
1
Tank Cars
13
13
Probable
3
2
Possible
9
5
Unidentified
Cars
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TAP cFfPFT
Table 2. Facilities in Wonsan Railroad Car Manufacturing and Rolling Stock Repair
Plant (Keyed to Figure 2)
Description
Dimensions
(Ft)
Tota I
Floorspace
(Sq Ft) Re
marks
Description
Dimensions
(Ft)
Total
Floorspace
(Sq Ft)
Workshop
60 x 45
2,700
Workshop
40 x 40
1,600
Pro
bable
Forge/Foundry
Workshop
120 x 40
4,800
Com
plex
Workshop
140 x 40
5,600
Sec
tion
a
205 x
70
14,350
Workshop
210 x 40
8,400
b
235 x
55
12,925
New Holding Yard
Added
between
c
245 x
55
13,475
Nov 6
7 and
d
300 x
90
27,000
Oct 6
9
Ass
embly
Building
670 x
150
100,500
7
Log Holding Basin
450 x
60
27,000
8
Workshop
120 x 40
4,800
9
Workshop
140 x 40
5,600
29 Wor
kshop
120 x
85
10,200
10
Workshop
225 x 40
9,000
30 Pos
sible
Producer Gas
100 x
40
4,000
11
Workshop
170 x 75
12,750
Pla
nt
75 x
30
2,250
12
Support Building
130 x 130
13,600
31 For
ge/Fo
undry
160 x
75
12,000
13
Woodworking Shop
255 x 180
35,900
32 Pro
bable
Forge Shop
265 x
100
26,500
80 x 60
4,800
33 Sup
port
Building
120 x
60
7,200
Probable Paint Shop
90 x 60
5,400 For P
Cars
assenger
75 x
60
4,500
15
16
Final Checkout Building
175 x 80
14,000 Gener
al Rolling
34 Wor
kshop
105 x
70
7,350
Stock
35 Wor
kshop
100 x
40
4,000
Probable Paint Shop
235 x 65
15,275 For R
ailroad
36 Pro
bable
Foundry
340 x
120
40,800
Cars
37 Wor
kshop
120 x 85 10,200
18
38 Pro
bable Water Treatment
100 x 75 7,500
19
Final Checkout Building
145 x 120
17,500 Proba
bly for
Fac
ility
85 x 30 2,550
Locom
otives
60 x 30 11,800
20
Probable Paint Shop
150 x 60
9,000 For L
ocomotives
39 Wor
kshop
105 x 60 6,300
21
Final Assembly Building
330 x 300
99,000 Rolli
ng Stock
40 Wor
kshops (2)
50 x 30 1,500
Produ
ction and
75 x 25 1,875
Repai
r Shop
41 Wor
kshop
160 x 40 6,400
Final Assembly Building
300 x 50
15,000 Passe
nger Car
42 Wor
kshop
140 x 45 6,200
315 x 205
64,575 Produ
ction and
43 Sup
port Building
95 x 40 3,800
Repai
r Shop
120 x 60 7,200
23
Administration Building
205 x 45
27,675 3 Sto
ry
24
Administration Building
100 x 45
13,500 3 Sto
ry
44 Res
ervoir
25
Storage Building
270 x 40
10,800
45 Adm
inistration Building
230 x 40 18,400
26
Rail Transverser
115 x 40 9,200
115 x 40 9,200
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Remarks
Locomotive
Parts and
Repair Shop
Probable School
Completed
between May 63
and Nov 64
Completed
between Apr 68
and Oct 69
2 Story
Building
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FIGURE 2. WONSAN RAILROAD CAR MANUFACTURING AND ROLLING STOCK REPAIR PLANT,
rvP stCREr
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M4a p
'l
548th RTC. US Air Target Chart, Series 200, Sheol r'O3-Hi :t
Au ust 1968, Scale 1:200,000, (SECCF
1. CIA. Wonsan Railroad Factory, 20
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2. US Eighth Army. Engineer I me I I i ( ence Report-, 1 1 3-61 , o `~ r_~ i_t nn
Report, 17 November 1961 (CONFILENTIAL)
Requirement
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