Emisor Oriente Tunnel
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The Emisor Oriente Tunnel, also known as the Tunel Emisor Oriente, Eastern Discharge Tunnel, Eastern Wastewater Tunnel, and East Issuing Tunnel, is a
wastewater Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industr ...
treatment tunnel in
Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
. At , it is the eighth longest tunnel in the world. It was constructed between 2008 and 2019 using a tunnel boring machine. Serving a population of 20 million, it runs from Mexico City to the Atotonilco Wastewater Treatment Plant in
Hidalgo Hidalgo may refer to: People * Hidalgo (nobility), members of the Spanish nobility * Hidalgo (surname) Places Mexico * Hidalgo (state), in central Mexico * Hidalgo, Coahuila, a town in the north Mexican state of Coahuila * Hidalgo, Nuevo Leà ...
state. It runs at a maximum depth of 200 meters (656 Feet) below ground level and has a discharge capacity of 150 m3/s. This tunnel will help prevent flooding and serves as an alternate exit for the Emisor Central, another drainage tunnel. In order to prevent collapse, the tunnel is constructed using a lining with segmental rings made of concrete and steel. The estimated cost for the tunnel was 15 billion
pesos The peso is the monetary unit of several countries in the Americas, and the Philippines. Originating in the Spanish Empire, the word translates to "weight". In most countries the peso uses the same sign, "$", as many currencies named "dollar" ...
. After completion, the tunnel was realized to have gone over budget and cost 30 billion pesos.


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Image
of boring machine

Buildings and structures in Mexico City Tunnels in Mexico