The New York City government has unveiled its proposals for new jails based in four of the city’s five boroughs to take the place of the sprawling detention facilities on Rikers Island, which since last year has been in the process of closing down.

The city is proposing to build the new jails, at 320 Concord Ave. in the Mott Haven section of the Bronx; at 275 Atlantic Ave. in downtown Brooklyn; at 80 Centre St. in Manhattan; and at 126-02 82nd Ave. in Kew Gardens, Queens.