The… Its length of 62 km makes it the longest of its kind in the world. 57,104 m (35.5 mi) and 57,017 m (35.4 mi) 2016. When completed, the tunnel's length of over 82 km makes it the longest continuous enclosed aqueduct in the southern hemisphere. Yulhyeon Tunnel, South Korea. It serves as the main water supply tunnel to New York City. With a route length of 57.09 km (35.5 mi), it is the world’s longest and deepest traffic tunnel and the first flat, low-level route through the Alps. Another water tunnel on this list, the Dahuofang Water Tunnel is responsible for bringing water to cities around northeast China around the major city of Shenyang. World’s Longest Undersea Rail Tunnel … A 2.5 mile long bypass tunnel is also being constructed to address the leak problem. The tunnel carries almost half of the New York's water supply every day. Length: 50km. The Orange–Fish River Tunnel supplies water for irrigation and household use in central South Africa. The whole tunnel runs underground and travels through the Haidian, Chaoyang, and Fengtai districts. The tunnel transports fresh water for the millions of inhabitants of Southern Finland's major cities like Helsinki, Espoo, and Vantaa. The water tunnel leaks about 36 million gallons of water daily through the leaks. The Päijänne Water Tunnel is the second longest tunnel in the world at just over 120,000 meters long. The tunnel went through extensive renovation in 2008 with the southern part of the tunnel reinforced to avoid curve-ins. The strategically important tunnel is 9.02 km long and it connects Manali to Lahaul-Spiti valley throughout the year. The Delaware Aqueduct is expected to be shut down to connect the bypass to the main aqueduct. At 24 kilometers or just over 15 miles in length, Norway's Lærdal Tunnel is the longest tunnel in the world. Year of built … The tunnel was drilled through solid rock and is, on average, around 4 meters wide for most of its course. Japan’s Seikan Tunnel is the longest underwater tunnel in the world, and is located beneath the Tsugaru Strait. At 24.5 km (15.23 miles) long, the Lærdal Tunnel is the longest road tunnel in the world, meaning it’s the longest tunnel that you can drive through. It is located in Southern Finland and runs between 30 and 100 meters underground-level. It is the longest highway tunnel in the world. The tunnel was built to provide fresh water from the Dahuofang Reservoir to the cities of Shenyang, Fushun, Liaoyang, Anshan, Panjin, Yingkou, and Dalian. Tunnels are underground passageways dug through an enclosed area like soil or rock. The tunnel serves around 20 million people as it runs from Mexico City to the Atotonilco Wastewater Treatment Plantin Hidalgo state. In the following article, we'll take a look at the 9 longest tunnels in the world. The Dahuofang Water Tunnel is the third longest continuous tunnel in the world. Gotthard Base Tunnel is the longest railway tunnel in the world. Length: … It supplies water to around 700,000 Swedish citizens and has a cross-section area of around 8 m2. Location: Central Swiss Alps, Switzerland. The Channel Tunnel, also known as Eurotunnel or Chunnel, is the world’s longest underwater railway tunnel built to connect the United Kingdom with Europe via France. The tunnel has a capacity of about 412 billion US gallons and … It supplies water to thousands of households in the cities of Helsinki, Vantaa, and Kerava among others in southern Finland. The tunnel runs for a total length of just over 50 km and first opened for business in 1994. The Delaware Aqueduct is the world's longest continuous tunnel in the world. The tunnel runs for a total length of just over, When completed, the tunnel's length of over, Line 10 is the world's longest subway loop line. The Bolmen Water Tunnel is another water supply tunnel in Scandinavia. Päijänne Water Tunnel is a 75-mile long water tunnel located in Southern Finland. We (humankind) have, in fact, been digging them for millennia. The world's longest and deepest rail tunnel has officially opened in Switzerland, after almost two decades of construction work. It took an estimated 842,000 m3 of concrete to line it. Quabbin Aqueduct is one of the longest tunnels in the world at 25 miles long. You may unsubscribe at any time. that were built to transport water for irrigation or, In the following article, we'll take a look at the 9. This rail tunnel in South Korea’s capital Seoul is 31.3 miles long. How long is the longest underwater tunnel? Assuming no traffic, it takes about 18 minutes to drive through this road tunnel if you're going the speed limit of 80 km/hr. The Delaware Aqueduct is the name of a water tunnel in New York City. Location: English Channel, between England and France. Currently the longest and most expensive rail tunnel in the world, the Gotthard Base Tunnel opened for service on 11… Humankind has been digging out tunnels for thousands of years. Ott Ummelas. World’s Longest Undersea Rail Tunnel Risks Seven-Year Delay By . Because the total tunnel breaks out at certain points it is not one long continuous tunnel. The Gotthard Base Tunnel started in 2004, and travels underneath the Swiss Alps for 35.4 miles. Fehmarnbelt Tunnel: The longest tunnel in the world. It took about five years and more than a billion kroner (approximately $114m) to construct. A $1 billion project was initiated in 2013 to repair the leaks. The Emisor Oriente Tunnel is a wastewater treatment tunnel located in Mexico City in Mexico. Channel Tunnel. World's Longest Motorable Tunnel The 8.8-km-long horseshoe-shaped single-tube two-lane tunnel is the world's longest motorable tunnel at over 3,000 metres above sea level. 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