What is the setting of Christ in Concrete?

Christ in Concrete, written by Pietro di Donato, was published in 1939 but is set generically in the 1920s. It started life as a short story, but di Donato later lengthened the story into a novel focusing on Italian American construction workers, like the author's father. As such, it is set in and around Manhattan in New York. Di Donato offers us an insight into the types of families who lived together in the melting pot of New York at that time by describing the various other families who live in the same tenement as Paul, an avatar character for the author.
In terms of time, the novel is set in the 1920s. In terms of its physical setting, it is set in a working-class area of Manhattan's Lower East Side in New York, a community which includes Russian Jews as well as Italian American immigrants. It tells an immigrant narrative.