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Aerial view of Phase II of the McCook Reservoir under construction in 2023. 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 ...
TARP’s large tunnels and reservoirs are designed to reduce the amount of combined sewer overflows (CSOs) and hold the polluted water until it can be fully treated at MWRD water reclamation plants. Since the TARP tunnels went online, the average annual number of days with CSOs has been reduced to 50 from 100.
Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles (2.4 km) long, 0.5 miles (0.80 km) wide, and 450 feet (140 m) deep at its deepest point. Gallagher Asphalt Corporation has been operating on the grounds of the quarry since 1928.
OpenStreetMap map of the Pedway Sign of the Chicago Pedway. An underground Pedway tunnel Inside a Pedway bridge between the Ogilvie Transportation Center and 2 North Riverside Plaza The Chicago Pedway is a network of tunnels , ground-level concourses and bridges in Chicago, Illinois connecting skyscrapers, retail stores, hotels, and train ...
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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 ]
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The State Street subway project was funded by New Deal programs established by Franklin D. Roosevelt during the Great Depression.In 1937, the city of Chicago successfully applied for a federal grant and loan from the Works Progress Administration to fund the construction of two subway tunnels, the first of which would be built beneath State Street and the second beneath Milwaukee Avenue and ...