Question: In 1970, a bridge built in 1890 was demolished in this place populated through the centuries by a series of ethnic groups new to the area, such as the Irish, Polish, and African Americans?

<P0-S0> Poles in Chicago are made up of both immigrant Poles and Americans of Polish heritage living in Chicago, Illinois. <P0-S1>  They are a part of worldwide Polonia, the proper term for the Polish Diaspora outside of Poland. <P0-S2>  Poles in Chicago have contributed to the economic, social and cultural well-being of Chicago from its very beginning. <P0-S3>  Poles have been a part of the history of Chicago since 1837, when Captain Joseph Napieralski, along with other veterans of the November Uprising first set foot there. <P0-S4>  As of the 2000 U.S. census, Poles in Chicago are the largest European American ethnic group in the city, making up 7.3% of the total population. <P0-S5>  However, according to the 2006–2008 American Community Survey, German Americans and Irish Americans each had slightly surpassed Polish Americans as the largest European American ethnic groups in Chicago . <P0-S6>  German Americans made up 7.3% of the population, and numbered at 199,789; Irish Americans also made up 7.3% of the population, and numbered at 199,294. <P0-S7>  Polish Americans now made up 6.7% of Chicago's population, and numbered at 182,064. <P0-S8>  Polish is the third most widely spoken language in Chicago behind English and Spanish. <SEP> <P1-S0> The Hawk Street Viaduct was a bridge spanning the Sheridan Hollow neighborhood in Albany, New York. <P1-S1>  Built in 1890, it was demolished in 1970 after decades of neglect which caused it to be limited to pedestrian traffic only in 1968. <P1-S2>  It was the first cantilever arch bridge in the world. <SEP> <P2-S0> Various ethnic groups in Omaha, Nebraska have lived in the city since its organization by Anglo-Americans in 1854. <P2-S1>  Native Americans of various nations lived in the Omaha territory for centuries before European arrival, and some stayed in the area. <P2-S2>  The city was founded by white Anglo-Saxon Protestants from neighboring Council Bluffs, Iowa. <P2-S3>  However, since the first settlement, substantial immigration from all of Europe, migration by African Americans from the Deep South and various ethnic groups from the Eastern United States, and new waves of more recent immigrants from Mexico and Africa have added layers of complexity to the workforce, culture, religious and social fabric of the city. <SEP> <P3-S0>  Capitol Hill to the south and Arbor Hill to the north flank the ravine. <P3-S1> Sheridan Hollow is a neighborhood in Albany, New York located in a ravine north of Downtown Albany. <P3-S2>  Often the neighborhood is overlooked by city residents, and outsiders who work in the neighborhood often don't recognize the name of the neighborhood. <P3-S3>  This is due to the identity of the Hollow being subsumed into its larger neighbor Arbor Hill, for instance news stories of events are often accredited to the wrong neighborhood. <P3-S4>  Being on undesirable land for development in colonial times, growth was slow in the Hollow and the neighborhood was populated through the centuries by a series of ethnic groups new to Albany, such as the Irish, Polish, and African Americans.