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Glessner House, designated on October 14, 1970, as one of the first official Chicago Landmarks Night view of the top of The Chicago Board of Trade Building at 141 West Jackson, an address that has twice housed Chicago's tallest building Chicago Landmark is a designation by the Mayor and the City Council of Chicago for historic sites in Chicago, Illinois. Listed sites are selected after meeting ...
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 ...
The St. Charles Air Line Bridge is a Strauss Trunnion bascule bridge which spans the Chicago River in Chicago, Illinois. Built as part of the St. Charles Air Line Railroad by the American Bridge Company in 1919, the bridge originally had a span of 260 feet (79 m). This bridge held the world record for longest bascule-type span until 1930, when ...
The world's longest suspension bridges are listed according to the length of their main span (i.e., the length of suspended roadway between the bridge's towers). The length of the main span is the most common method of comparing the sizes of suspension bridges, often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge. [4]
The decision to build a bridge around Millau was taken in September 1986, says Virlogeux, who at the time was head of the large bridges division of the French administration.
The Outer Drive Bridge, also known as the Link Bridge, is a double-deck bascule bridge carrying DuSable Lake Shore Drive across the Chicago River in Chicago, Illinois, United States. Construction was started in 1929 and was completed in 1937 as one of the Public Works Administration 's infrastructure projects in Chicago.
The Chicago Sun-Times, the last railroad customer to the east of the bridge, moved their printing plant out of downtown Chicago in 2000, and the bridge has been unused since. It was designated a Chicago Landmark in 2007. The bridge is lowered once a year and inspected by crew driving a Hi-Rail truck, and is still in "active" status. [2] [3]
The Big Room is the largest single cave chamber by volume in North America, but Carlsbad Cavern is not the biggest cave. Mammoth Cave in Kentucky is the longest known cave system in the whole world.