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Contrary to the article's assertions, the Randolph Street Station has always been underground. The building of Millenium Park did nothing to change this. The only above-ground station for the IC/South Shore in the city proper was the old Central Station, which was torn down many decades ago. The reason all these stations are underground is that the tracks themselves are far below grade level and the Burnham Plan stipulated that permanent structures not be built along the lakefront (a stipulation which has been ignored now and then, but was adhered to in this case).
I'd always understood that the IC was electrified because of pollution problems along the entire south lakefront, and not just in the Grant Park cut. Does anyone know of a definitive source? L Glidewell 04:57, 17 December 2006 (UTC)