SOUTHEAST ASIA ACTIVITY REPORT SELECTED TRANSPORTATION AND INFILTRATION COMPENDIUM

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04560A006200010008-2
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 22
• Document Creation Date: December 28, 2016
• Document Release Date: February 9, 2000
• Sequence Number: 8
• Publication Date: January 1, 1968
• Content Type: REPORT

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PHOTOGRAPHIC INTERI RETATIbr REPORT
SOUTHEAST ASIA
ACTIVITY REPORT
SELECTED TRANSPORTATION
AND INFILTRATION
COMPENDIUM
CHANGES IN NORTH VIETNAM
ELECTRIC POWER FACILITIES
GROUP 7 EXCLUDED FROM
AUTOMATIC DOWNGRADING
AND DECLASSIFICATION
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This document contains information affecting
the national defense of the United States,
within the meaning of Title 18, sections
793 and 794, of the U.S. Code, as amended.
Its transmission or revelation of its contents
to or receipt by an unauthorized person is
prohibited by law.
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:OPIES
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COPIES
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PREFACE
This report is a summary of selected information
on transportation and infiltration activity in southeast
Asia as reported by NPIC during the period indicated
on the cover. Those lines of communication and associ-
ated facilities which support communist insurgency in
Laos and South Vietnam are emphasized.
Items are numbered and arranged according to location
from north to south. Annotated maps of varying scales
have been included to assist the reader in locating the
items. Each large-scale map depicts all motorable roads
photographically confirmed by NPIC unless otherwise in-
dicated.
Missions, mission dates, frames, and NPIC cable
and briefing board references are listed after each item,
as appropriate.
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Changes in North Vietnam Electric Power Facilities
Significant changes have occurred in the electric power producing and
transforming facilities of North Vietnam as a direct result of the
expansion and increased effectiveness of airstrikes. Major 110 kv
substations are now inoperative, thermal powerplants are being modified,
and diesel electric powerplants have been recently constructed. The result
is a virtual abandonment of the sophisticated electric power grid (EPG) as
originally conceived and a concerted effort to maintain power production
for local consumption.
Four of the six major 110 kv substations are inoperative due to the
destruction and/or removal of their transformers: Ha Noi Transformer
5X1A Substation Dong Anh (Figure 2); Ha Dong Transformer
5X1A
Substation, (Figure 3); Hai Phong Transformer Substation,
2
X1A
(Figure 4+); and Cam Pha Transformer Substation Mong
2
X1A
Duong, (Figure 5). In addition, the control building has
2
X1A
been partially dismantled at Nam Dinh Transformer Substation, 25X1A
ear abandoned (compare
llations a
st
i
6)
All fi
Fi
pp
ve
n
a
.
gure
pages D1O thru D21, NPIC/R-1)+667 Southeast Asia Activity Report, Electric
2
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Power Facilities, North Vietnam, Oct 7, SECRET NO FOREIGN DISSEM EXCEPT
The abandonment of the substations is probably a direct result of
effective airstrikes against the powerplants and the resulting reduction
in high voltage transmission capacity. The transformers removed from the
substations could either be stored for the future reconstruction of the
EPG or relocated at existing powerplants.
Even those powerplants still in operation are undergoing major
modifications to reduce the vulnerability of critical components and to
maintain serviceability in spite of airstrikes. Transformers have been
relocated in deep, reinforced holes outside the installation perimeter at
the following: Uong Bi Thermal Electric Powerplant,
(Figures 7 & 8); Bac Giang Thermal Electric Powerplant,
(Figures 9 & 10); Thai Nguyen Thermal Electric Powerplant,
(Figure 11); Thanh Hoa Thermal Electric Powerplant,
(Figure 12); and Ban Thach Hydroelectric Powerplant,
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2 25X1A
The powerplant waste disposal system is being modified to accommodate
both fly ash (sludge) and gaseous materials in a single underground conduit,
thereby eliminating the requirement for a main stack. This innovation was
confirmed at Uong Bi where the flue extensions by-pass the destroyed stack
and connect with a partially underground conduit terminating at the fly
ash disposal area (Figure 8).
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CHINA
Dien Bien
Ph u
(FIGS. 9, 10, 14L n
Lang
N uyen (FIG. 5)
(FIG. 13)
I G. 2)
(FIG. 3)
,.. Sorsg Pn6
~FIG.4)
ac Gi ng
. 18)
Thai
Binh
e1
Dinh
(6dS. 7
(FIGS. 15 -17)
GULF
0 F
TONKIN
TH A I L- A N I5
sTHE tMAL!HYD O PO ERPLANT
Ef = bIE E.L POWERPLAi T
? r TIOhkaz
ong Hoi
h Linh
SOUTH
'kP'IC M1273
VI?TNA
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11jf
A similar disposal system was probably constructed at the Viet Tr-i_
25X1A Thermal Electric Powerplant, Although the stack remain;
undamaged, a newly constructed conduit extends from the main flee near it,;
entrance into the stack and follows the alignment of the previously
existing fly ash disposal line (Figure l3).
Construction of an underground conduit was begun at Thanh Hoa after
airstrikes against that insta!_lation. leis conduit also appears to e:xtenbi
from the flue system and by-pass the stack (Figure 12). Unlike those at
Uong Bi and Viet Tri, it does not coincide with the previously existing
fly ash disposal line. It may therefore have been intended to function
only as a horizontal flue for the discharge at gaseous materiaas and not
as a combined waste disposal line.
Gaseous wastes and/or steam have been observed rising from two above-
ground pipes at Bac Giang (Figure li). These pipes, extending from the
area of the stack flues, may also be serving as horizontal flues.
In an apparent attempt to offset the -cower lost from the inoperative
thermal powerplants, the North Vietnamese have been constructing diesel-
electric powerplants since early lyrd7 (see Section C, NPIC/R-146/67).
Although these facilities are difficult to detect due to their compact
nature, various combinations of identifiable features are present at (_,act
(see Figure 18). Figures 15, 16 and 1'; demonstrate the relatively short
time span required for construction. The photo below is included as en
example of the diesel engines currently Jr use in North Vietnam.
FIGURE 1. TYPICAL DIESEL ENGINE, NORTH VIETNAM
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I-IGURE 2. HA NOl TRANSFGRMFF' Sh RSTATION, f.)( 4NH NC~RT VIFTNAO
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FIGURE 3. HA DONG TRANSFORMER SUBSTATION, NORTH VIETNAM
,'age 7
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 19~IC/R-i '68
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KINIMPAIMMIM.
FIGURE 42 A1 PRONG TRANSFORMER S(;FSTATI' ^1, NORTH VIETNAM
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'DESTROYED
CONTROL BUILDING
FIGURE 5. CA;5RHIRRAN.SFORMER SUBSTATION, MONG DUONG, NORTH VIETNAM
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25X1 D
rrr r'RAV'-c-(ipNFi. H )NG BI k -A, NORTH VIETNAM
I %1
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COMBINATION WASTE
DISPOSAL CONDUIT
1001t TRANSFORMERS REMAIN
4+r[ TRANSFORMERS REMOVED (SEE FIG. 7)
25X1 D FIGURE 8. UONG BI THERMAL ELECTRIC POWERPLANT, NORTH VIETNAM
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n r FU TRAM' FOFMFr, f3AC G.A .AREA, NORTH VIETNAM
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v w-* TRANSFORMER REMAINS
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35 KV LINES
miiiiiii~
lmmm~ '4 '!C na i z. an
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RELOCATED TRANSFORME
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SECRET
FLYASH DISPOSAL AREA
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'EPIC M-i2F6
SECRET
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FIGURE 74. BAC GIANG THERVAL ELECTRIC -OWERPLANT, NORTH VIET NAiMM
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ET~'-'iC L Wr_Pn_
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r
9
C nn
-
za
NEW NPI
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l ?
FIGURE 16. HAI PHONG DIESEL ELECTRIC POWERPLANT AUX 4 UNDER CONSTRUCTION (MID-STAGE),
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25X1 DFIGURE 17. HAI PHONG DIESEL-ELECTRIC POWERPLANT AUX 4, NORTH VIETNAM
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