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Chicago is also divided into 77 community areas which were drawn by University of Chicago researchers in the late 1920s. [3] Chicago's community areas are well-defined, generally contain multiple neighborhoods, and depending on the neighborhood, less commonly used by residents. [2] [4]
The intercepting sewers are fed by approximately 10,000 local sewer system connections and are critical in managing stormwater and preserving the waterways. From 1955 through 1988, the District was called The Metropolitan Sanitary District of Greater Chicago.
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 ...
The legal name of each township is the form "___ Township" or "Town of ____". [2] State law specifies that no two townships in Illinois shall have the same name, [ 3 ] and that, if the Illinois Secretary of State compares the township abstracts and finds a duplicate, the county that last adopted the name shall instead adopt a different name at ...
The 1836 plan of the town of Hudson was interesting in several respects. First, most central Illinois towns of the 1830s were laid around a central public square, but Hudson had none. [9] Second, the town of Hudson had both "in lots" - and "out lots". The "in lots" formed the core of Hudson and were standard blocks of lots like any other town.
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Combined Sewer System. The change in the river's water flow was estimated to provide enough treatment-by-dilution for up to a population of three million. [1] However, in 1908, it became clear to the Chicago Sanitary District that the city’s population was continuing to grow and that the population would soon exceed the treatment capacity that the canal offered.
In January 1858, the first masonry building in Chicago to be thus raised—a four-story, 70-foot-long (21 m), 750-ton (680 metric tons) brick structure situated at the north-east corner of Randolph Street and Dearborn Street—was lifted on two hundred jackscrews to its new grade, which was 6 feet 2 inches (1.88 m) higher than the old one, “without the slightest injury to the building.” [9 ...