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The Chicago Tunnel Company was the builder and operator of a 2 ft (610 mm) narrow-gauge railway freight tunnel network under downtown Chicago, Illinois. This was regulated by the Interstate Commerce Commission as an interurban even though it operated entirely under central Chicago, did not carry passengers, and was entirely underground. [ 1 ]
The $4 billion Tunnel and Reservoir Plan (TARP), better known as “The Deep Tunnel,” is the Metropolitan Water Reclamation District of Greater Chicago's answer to water pollution and sewer backup problems in 52 municipalities in Cook County. Begun in 1975, and at one time the nation's largest municipal water pollution control project, it ...
Jun 20, 2023 · Chicago was expanding rapidly, with the population rising from 30,000 in 1850 to 500,000 by 1870. This rapid growth made it necessary to create an efficient transportation system. The tunnels were constructed with two goals in mind: to improve public transportation, and to reduce the noise and pollution caused by the city’s booming population.
The Tunnel and Reservoir Plan (abbreviated TARP and more commonly known as the Deep Tunnel Project or the Chicago Deep Tunnel) is a large civil engineering project that aims to reduce flooding in the metropolitan Chicago area, and to reduce the harmful effects of flushing raw sewage into Lake Michigan by diverting storm water and sewage into temporary holding reservoirs.
It was initially dubbed as the Chicago Underflow Plan, a solution chosen out of 23 alternatives to address flood and pollution control, coming in at a price tag of $1.223 billion. Known famously today as “Deep Tunnel,” the MWRD’s system is unmatched in size throughout the world but emulated just the same.
Mar 17, 2003 · In prosecuting the work, shafts were sunk, as a rule, in the basements of various buildings, which were rented for the purpose of the tunnel company ; and these basements were used for mixing the concrete and for installing the air-compressing plants which supplied the necessary air at ten pounds pressure for the pneumatic system under which the whole work was prosecuted.
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Nov 1, 2021 · November 1, 2021. BY Emily Beyda. Many experts believe that Chicago’s Tunnel and Reservoir Plan (TARP)—initially designed to reduce flooding, improve the Illinois city’s water quality and protect adjacent Lake Michigan from pollution—is one of the most ambitious civil engineering projects in history. Under construction since the 1970s ...
