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in 1958. It took 820 days for the tunnel to be completed which were mostly done by hand, with some exception of small amount of explosive. Some of the workers lost their lives during the construction process. At that time, the tunnel could harbor 120 small naval vessels but it was badly damaged after
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The tunnel is 700 meters in length. It goes deep into the granite mountain and there is a waterway with 18 meters in height, 10 meters in width and 640 meters in length. Water inside the tunnel goes as deep as 4 meters during low tide and 8 meters during high tide.
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After the return of Matsu
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Chien, Chao-fu; Hetherington, William (14 May 2017).
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for ships to avoid bad weather and attacks from the
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16:Tunnel in Nangan, Lienchiang, Taiwan
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459:1971 establishments in Taiwan
479:Tunnels in Lienchiang County
217:Second Taiwan Strait Crisis
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90:26.1430722°N 119.9291333°E
474:Tunnels completed in 1971
306:Taiwan, the Heart of Asia
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427:"Beihai Tunnel (Nangan)"
401:"Beihai Tunnel (Nangan)"
213:People's Liberation Army
257:Beihai Tunnel (Dongyin)
95:26.1430722; 119.9291333
376:"Nangan Beihai Tunnel"
252:Beihai Tunnel (Beigan)
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281:Matsu Nangan Airport
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78:26°8′35.06″N
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68:Coordinates
453:Categories
263:References
151:700 meters
111:Work begun
57:Lienchiang
143:Technical
106:Operation
236:See also
135:Reopened
49:Location
36:Overview
437:15 June
411:15 June
385:15 June
337:15 June
312:15 June
286:15 June
227:Geology
203:History
171:Chinese
127:Rebuilt
360:18 May
197:Taiwan
181::
179:pinyin
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148:Length
119:Opened
61:Taiwan
53:Nangan
439:2021
413:2021
387:2021
362:2017
339:2021
314:2021
288:2021
175:北海坑道
165:The
138:2000
130:1992
122:1971
114:1969
44:北海坑道
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