This is the 255th annual parade — considered the largest St. Patrick's parade in the world, according to organizers. More than 150,000 St. Patrick's Day enthusiasts are expected to march, including Mayor Bill de Blasio who until this year boycotted the parade because organizers previously would not allow LGBT groups to march under their own banners.
Here's everything you need to know to get you to the route (or to help you avoid it if parades aren't your thing):
Revelers will march along Fifth Avenue from 44th Street to 79th Street, beginning at 11:00 a.m., according to organizers.
NYPD announced road closures between 11:00 a.m. and 5:00 p.m. on Fifth Avenue from 42nd Street through 86th Street.
On the southern side of the route, roads will be shutdown on Vanderbilt Avenue between 43rd Street and 46th Street; 43rd Street through 46th Street between Vanderbilt Avenue and 6th Avenue; 47th Street and 48th Street between Park Avenue and 6th Avenue.
On the northern side of the route, there will be closures on 78th Street between Madison and Fifth avenues; 79th Street through 83rd Street between Fifth and Park avenues; 84th Street and 85th Street between Madison and Fifth avenues; and Madison Avenue between 78th Street and 86th Street.
Traffic will be stopped along the route on 62nd and 63rd streets between Fifth and Madison avenues; 64th Street between Park and Fifth avenues; 72nd Street between Madison and Fifth avenues; and Madison Avenue between 63rd Street and 64 Street.