<Tr> <Th> Major junctions </Th> <Td> US 101 </Td> </Tr> <Tr> <Th> East end </Th> <Td> The Embarcadero </Td> </Tr> <P> Lombard Street is an east--west street in San Francisco, California that is famous for a steep, one - block section with eight hairpin turns . Stretching from The Presidio east to The Embarcadero (with a gap on Telegraph Hill), most of the street's western segment is a major thoroughfare designated as part of U.S. Route 101 . The famous one - block section, claimed as "the crookedest street in the world", is located along the eastern segment in the Russian Hill neighborhood . The street was named after Lombard Street in Philadelphia by San Francisco surveyor Jasper O'Farrell . </P> <P> Lombard Street's west end is at Presidio Boulevard inside The Presidio; it then heads east through the Cow Hollow neighborhood . For twelve blocks, between Broderick Street and Van Ness Avenue, it is an arterial road that is co-signed as U.S. Route 101 . Lombard Street continues through the Russian Hill neighborhood and to the Telegraph Hill neighborhood . At Telegraph Hill it turns south, becoming Telegraph Hill Boulevard to Pioneer Park and Coit Tower . Lombard Street starts again at Winthrop Street and ends at The Embarcadero as a collector road . </P>

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