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When it opened in 1902, on Chicago's north side, it was the first such bridge built in the United States. The bridge was a major advance in American movable bridge engineering, and was the prototype for over 50 additional bridges in Chicago alone. [5] The bridge was designated as an ASCE Civil Engineering Landmark in 1981, and a Chicago ...
Chicago Avenue Bridge Extant Simple trunnion bascule: 1914 1999 Chicago Avenue: North Branch of Chicago River: Chicago: Cook: IL-145: Chicago Skyway Toll Bridge: Extant Cantilever: 1958 2001 Chicago Skyway: Calumet River: Chicago: Cook
Teotihuacan is known today as the site of many of the most architecturally significant Mesoamerican pyramids built in the pre-Columbian Americas, namely the Pyramid of the Sun and the Pyramid of the Moon. Although close to Mexico City, Teotihuacan was not a Mexica (i.e. Aztec) city, and it predates the Aztec Empire by many centuries.
However, sewage still flowed into the lake and polluted the city's drinking water. In 1863, work began on a two-mile Chicago lake tunnel, sixty feet under the lake, out to a new intake crib. that would draw cleaner water farther from the city. [9] Eventually, however, sewage water seeped all the way to the crib, giving Chesbrough a third chance ...
Willis Tower, the tallest building in Chicago. The buildings and architecture of Chicago reflect the city's history and multicultural heritage, featuring prominent buildings in a variety of styles. Most structures downtown were destroyed by the Great Chicago Fire in 1871 (an exception being the Water Tower). [1]
Jean Baptiste Point du Sable (French pronunciation: [ʒɑ̃ batist pwɛ̃ dy sɑbl]; also spelled Point de Sable, Point au Sable, Point Sable, Pointe DuSable, or Pointe du Sable; [n 1] before 1750 [n 2] – August 28, 1818) is regarded as the first permanent non-Native settler of what would later become Chicago, Illinois, and is recognized as the city's founder. [7]
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 ...
The DuSable Bridge (formerly the Michigan Avenue Bridge) is a bascule bridge that carries Michigan Avenue across the main stem of the Chicago River in downtown Chicago, Illinois, United States. The bridge was proposed in the early 20th century as part of a plan to link Grant Park (downtown) and Lincoln Park (uptown) with a grand boulevard ...