M100 (New York City bus)

The **Broadway-Kingsbridge Line** is a surface transit line in Manhattan, New York City. Originally a streetcar line, it now consists of the **M100** bus route, operated by the New York City Transit Authority.

## Route description

The route begins at Broadway and West 220th Street, and turns right on 9th Avenue, again on West 216th Street, and left onto 10th Avenue. It the continues until it uses Nagle Avenue and 204th Street, and goes back on 10th Avenue. It continues until it turns right on Dyckman Street, and left on Broadway. It then continues until it uses West 166th Street to access Saint Nicholas Avenue, and continues on Saint Nicholas Avenue until it goes on Amsterdam Avenue. It then continues until it turns left on West 125th Street. It then continues on the street until it uses First Avenue, and goes on the street loop, where it ends.

For buses heading to Inwood, buses turn right onto West 125th Street, and goes on the same route as the other direction, except for a portion in which they use West 163rd Street to access Saint Nicholas Avenue and the latter to access Broadway. Buses then use Dyckman Street to access 10th Avenue, and continues until it ends at West 219th Street.

## History

### Streetcar service

The Kingsbridge Railway was chartered in 1898 to build a railway from Manhattan Street to the city line. An agreement was made with the New York City Railway in 1906 to operate their cars over Kingsbridge Railway tracks. With the collapse of the Metropolitan Street Railway in 1908, the agreement was terminated. Third Avenue Railway began leasing the Kingsbridge Railway the same year.

### Bus service

Surface Transportation Corporation's bus route M100 replaced Third Avenue Railway's Broadway-Kingsbridge Line streetcar on June 22, 1947.

The original northern terminus was at Riverdale-Broadway/West 230th Street. Service was extended to Henry Hudson Parkway-West 239th Street via Spuyten Duyvil in November 1967, replacing the former Bx10A service. Service was further extended to Riverdale Avenue-West 262nd Street in July 1974.

On February 19, 1984, weekday service terminated at Henry Hudson Parkway-West 246th Street, while all weeknight late evening and all weekend service continued to Riverdale Avenue-West 262nd Street. On March 5, 1989, the M100 saw further reductions in service, as the Bronx portion was split into the Bx20, but was not extended to Riverdale-West 262nd Street. These service cuts took place in order to address unreliable service. Service initially terminated at West 207th Street-Tenth Avenue.

Service was extended from Inwood-207th Street to 220th Street-Broadway to serve the Allen Hospital, a satellite facility of NewYork-Presbyterian Hospital on September 7, 1997. Also on this date, service was extended on the route's south end from Third Avenue to Second Avenue.

In September 2013, the route was extended to First Avenue and 125th Street to provide additional service on 125th Street.
Inwood section rerouted from Broadway to Dyckman Street and Tenth Avenue on June 29, 2014.

As part of a redesign of the Bronx bus system, service on 125th Street will be discontinued. The M60 Select Bus Service, the M101, and the M125 (a new route that will replace the portion of the Bx15 south of The Hub) will cover this portion.