On Thursday, March 17 at 11 a.m., New York City will hold its 255th St. Patrick’s Day Parade.

The parade will be led by grand marshal Sen. George Mitchell and will start at 44th Street and Fifth Avenue. It will travel up Fifth Avenue and will end at 79th Street. Mayor Bill de Blasio will also be marching in the parade, which he'll be attending for the first time in two years. 

RELATED: De Blasio to march in St. Patrick’s parade after LGBT ban dropped

If you plan on attending the parade there are a few things to note.

Alcohol is not allowed in the parade-watching areas. Anyone displaying public drunkenness will be removed from the parade by NYPD.

There are no pets allowed along the parade route or in reviewing stands.

Just like any other large-scale New York City public events, the NYPD reserves the right to check all backpacks and large bags.

RELATED: People less likely to celebrate St. Patrick's Day on the actual holiday: Report

TRANSIT INFO

The MTA will provide special service in Manhattan on St. Patrick’s Day.

The Long Island Railroad and Metro North will provide customers with extra trains to help with commuting to and from the parade on Thursday.

Subways

At 77th Street on the 6 line, the NYPD may designate some staircases for entry/exit only on both the uptown and downtown side to help with crowd control.

Buses

The following bus routes will be detoured in the area along the parade route:

M1, M2, M3, M4, M5, M31, M42, M50, M57, M66, M72, M79, BxM2, BxM3, BxM4, BxM6, BxM7, BxM8, BxM9, BxM10, BxM11, Q32 and most Staten Island express buses.

MTA Bridges and Tunnels 

The MTA advises parade-goers to avoid driving into the city and to take mass transit. They also warn motorists to never drive while drinking. There will be increased police presence at all MTA locations and crossings to combat drunk driving. 

For more information visit MTA.info

STREET CLOSURES

The following streets will be closed from 11 a.m. to 5 p.m. The NYPD may close additional streets depending on the amount of people in the area.

Parade formation:

Vanderbilt Avenue between 43rd Street and 46th Street
43rd Street between Vanderbilt Avenue and 6th Avenue
44th Street between Vanderbilt Avenue and 6th Avenue
45th Street between Vanderbilt Avenue and 6th Avenue
46th Street between Vanderbilt Avenue and 6th Avenue
47th Street between Park Avenue and 6th Avenue
48th Street between Park Avenue and 6th Avenue
5th Avenue between 42nd Street and 44th Street

Parade route: 

5th Avenue between 44th Street and 79th Street

Dispersal:

5th Avenue between 86th Street and 79th Street
78th Street between Madison Avenue and 5th Avenue
79th Street between 5th Avenue and Park Avenue
80th Street between 5th Avenue and Park Avenue
81st Street between 5th Avenue and Park Avenue
82nd Street between 5th Avenue and Park Avenue
83rd Street between 5th Avenue and Park Avenue
84th Street between Madison Avenue and 5th Avenue
85th Street between Madison Avenue and 5th Avenue
Madison Avenue between East 78th Street and East 86th Street

Miscellaneous closures in area:

62nd Street between 5th Avenue and Madison Avenue
63rd Street between 5th Avenue and Madison Avenue
64th Street between Park Avenue and 5th Avenue
72nd Street between Madison Avenue and 5th Avenue
Madison Avenue between 63rd Street and 64th Street