The Hill Street Tunnels, looking north on Hill Street from First

1954-2014 Like many of the city's early public works projects, the Hill Street Tunnels provided a solution to one of Los Angeles' greatest topographic obstacles to regional mobility, the hills at Downtown's northwestern edge. While of most of them had been covered by the street grid by the turn of the 20th century, their steep…

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Looking north on Vermont Avenue from 24th Street, 1929-2013 Los angeles history, Los angeles area, Vintage los angeles

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Hill Street Tunnel at Temple - Los Angeles Public Library Photo Collection - Tessa: Photos and Digital Collections

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Pittsburgh's favorite enigma: Why do drivers slow down to enter the Squirrel Hill Tunnel?

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