DONG-DANG- HANOI RAIL LINE CHOKE POINTS

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78T05439A000500300003-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 28, 2016
• Document Release Date: December 20, 2000
• Sequence Number: 3
• Content Type: IR

ILLEGIB
Approved For Release 2001/03/03 :CIA-RDP78T05439A000500300003-4
Approved For Release 2001/03/03 :CIA-RDP78T05439A000500300003-4
 CIA IMAGERY /WALY515 DIVISION
?S~ECRET~
25X~E
NO FOREIGN DISSEM
DONG=DANG; - HANOI RANI, LINE
CHOI{~ POINTS ?
crA/PZR-65oi~+
This report is a. study?of selected critical choke points-along the~Dong-
bang - Hanoi Rail wine,. which is. one .of the principal transportation links
beftaeen North. Vietnam snd Com>ziuniSt~? China. The; purpose of this s3eport :is
to establish a. base wl7icYi will. grea.t7~y facilitate efforts to eva~uate any .
future action undertaken against thi~ lihe.;~ _ - -
Included in this?report is a. table (Tab1e`.I) of bridges whicYi are 50?feet?
ors?longer, giving"the, length (~in feet), locatign,-number of .spans, type of ,
bridge, and the type?of construction. An accompas~ying large scale .map overlay
(figure 1) is keyed to USATC 200 Series, Scale Z:2Q0,000 aT~l depicts the location
of the bridges ?studied"in this report. fihe.numerical sequence of Table d
coincides with the map overlay in a north td south progression.' -
All measurements have been made by the ClA~3A~~1B project a>~alysts:-They
.should be considered.as approximate. and. must not be taken as official~NP1C ?.
mensuration data compiled by the Technical Intelligence Division, I~7PIC.. r
SECRET ,.
NO FOREIGN DISSEM -
25X1 C
 SECRET
-. NO fORE16N DISSEM -
BR2DGE -NO . " COORDIl~IATES
CTA/P3R- 6501+
TABLE I'-;
21 58N - 106 .1+3E ~. ', 1~+0 Feet
21 5oN - 106 ?~5E ...' 330 meet
21 ~+9N - .106 ?+6E ' ~, 50 Feet
21 ~+~+N- - 7_O{ .~+2E ~ 100 Feet
2~ ~+3N _.106 ~+2E 9O ;Feet
21 1+?3N - 106 1~2E 50 Feet
21 ~+31V ,_- 106 ~+2E 75? Feet',
21 ~+3N -