Emisor Oriente Tunnel

The Emisor Oriente Tunnel, also known as the Tunel Emisor Oriente, Eastern Discharge Tunnel, Eastern Wastewater Tunnel, and East Issuing Tunnel, is a wastewater treatment tunnel in Mexico City, Mexico.[1][2] At 62,500 m (38.8 mi), it is the seventh longest tunnel in the world. It was constructed between 2008 and 2014 using a tunnel boring machine. Serving a population of 20 million, it runs from Mexico city to the Atotonilco Wastewater Treatment Plant in Hidalgo state. It runs at a maximum depth of 200 metres 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.

Emisor Oriente Tunnel
Enrique Peña Nieto and Miguel Ángel Mancera in the tunnel in 2013
Overview
Official nameTunel Emisor Oriente
LocationMexico City
CoordinatesEntrance: 19.503338°N 99.077452°W / 19.503338; -99.077452
Exit: 19.948116°N 99.295649°W / 19.948116; -99.295649
StartMexico City
EndAtotonilco Wastewater Treatment Plant in Hidalgo state
Technical
Length62,500 m (38.8 mi)
Lowest elevationmaximum 200 metres below ground level

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 which is 757,684,800 dollars. After completion, the tunnel was realized to have gone over budget and cost 30 billion pesos.

References
  1. Anonymous (15 January 2015). "Tunnel Emisor Oriente, Mexico City, Mexico". www.poyry.com.
  2. "Tunnel Emisor Oriente (TEO), Mexico City". Water Technology.
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