Japan’s Seikan Tunnel: The World’s Longest Undersea Tunnel Japan’s Seikan Tunnel is the longest undersea tunnel in the world, stretching over 53 kilometers, with 23 kilometers running beneath the ocean floor. Built to withstand earthquakes and harsh seabed conditions, it connects Honshu and Hokkaido. Completed in 1988, the tunnel stands as a triumph of civil engineering, safety planning, and geological mastery—especially in one of the world’s most seismically active regions. Important Details: •
0:16
Japan’s Seikan Tunnel: The World’s Longest Undersea Tunnel Japan’…
1.9K views3 months ago
FacebookUnbox Factory
The Remarkable Story of How the Chunnel Was Built
The Remarkable Story of How the Chunnel Was Built
Aug 12, 2019
thoughtco.com
How Are Undersea Tunnels Built Without Letting Water In?
7:53
How Are Undersea Tunnels Built Without Letting Water In?
665 views2 weeks ago
YouTubeMachine Logic
Inside the CHINA Channel Tunnel: How the $15 Billion Undersea Mega Tunnel Was Built Impossible Path!
17:45
Inside the CHINA Channel Tunnel: How the $15 Billion Undersea Meg…
2 views1 month ago
YouTubeCapitol Insider
Europe Is Carving Beneath the Baltic Sea to Build the World’s Longest Underwater Tunnel
24:57
Europe Is Carving Beneath the Baltic Sea to Build the World’s Lo…
10.2K views2 weeks ago
YouTubeTerran Works
Inside the Impossible Undersea Tunnel – How Europe Built the $15B Mega Project
15:22
Inside the Impossible Undersea Tunnel – How Europe Built the $15…
158 views3 weeks ago
YouTubeEvoLine Process
Inside China’s $20B “Deep-Sea” Bridge: How They Built an Impossible Tunnel in the Ocean!
16:25
Inside China’s $20B “Deep-Sea” Bridge: How They Built an Imposs…
4.1K views2 weeks ago
YouTubeCapitol Insider
0:49
Impossible Underwater Tunnel Built Beneath Volcanic Islands 🌋 | Mega …
4.6K views1 month ago
YouTubeMegaForge
16:55
Inside the Impossible Channel Tunnel – The $15B Undersea Meg…
63.8K views1 month ago
YouTubeMilitary Factory
10:57
How China Is Constructing a $100 Billion Subsea Tunnel to South Ko…
264 views4 weeks ago
YouTubeMachinery Frenzy
9:07
The World’s Longest Undersea Tunnel: Rogfast $47B Impossible …
1.8K views2 months ago
YouTubeCapitol Insider
0:39
Underwater Glass Tunnel Built From Scratch | Cinematic Construction …
1.8K views1 month ago
YouTubeGround Rise
2:40
How Tunnels Are Built Underwater
385 views1 month ago
YouTubeBite Size
0:43
Flat underwater seabed transforms into a fully functional glass tunnel …
30.8K views1 month ago
YouTubeLadies House Group
0:22
How Tunnels Are Built Under the Ocean
15.5K views1 month ago
YouTubeViral Brain
1:59
Pipejacking Microtunelling Animation
151.5K viewsDec 20, 2016
YouTubeFP McCann
10:02
Cubital Tunnel Surgery
397.4K viewsNov 15, 2014
YouTubeJohn Knight
2:23
Deep Tunnel Sewerage System (DTSS) Phase 2
49.4K viewsApr 4, 2019
YouTubesgPUB
1:13
'Most sophisticated tunnel in US history' discovered between Mexic…
478.8K viewsAug 8, 2020
YouTubeGuardian News
44:35
The Chunnel World's Longest Underwater Tunnel Megastructures
13.2K viewsDec 20, 2017
YouTubeRajesh Vansfoda
1:17
Meet The World's First Floating Underwater Tunnel
151.4K viewsAug 5, 2016
YouTubeFuturism
5:38
How the world's longest underwater tunnel was built - Alex Gendler
4M viewsMar 30, 2020
YouTubeTED-Ed
21:42
Driving Across The Chesapeake Bay Bridge–Tunnel - Virginia
7.3K viewsOct 10, 2018
YouTubegatorpics09
3:00
Virginia’s Chesapeake Bay Bridge–Tunnel
1.8K views1 month ago
YouTubeWide Angle Views
21:10
Chesapeake Bay Bridge-Tunnel northbound
75K viewsMar 14, 2014
YouTuberoadwaywiz
10:16
The Eurasia Undersea Tunnel Project
610.1K viewsOct 18, 2016
YouTubeDOKU MAGAZINE
0:25
UNDERWATER TUNNEL Built in REVERSE Seabed
1.1K views2 months ago
YouTubeMonument Maker Ai
19:06
Chesapeake Bay Bridge Tunnel CBBT - Virginia - Beginning To En…
176K viewsDec 29, 2022
YouTubeReelJayB
6:17
Crossing Chesapeake Bay Bridge - Tunnel ( Virginia Beach, Cape Cha…
195.5K viewsSep 14, 2021
YouTubeThompson AutoTravel
7:21
The Eurasia Tunnel | Avrasya Tüneli Istanbul 4K
57.5K viewsJul 25, 2021
YouTubeNova Travel
See more videos
Static thumbnail place holder