S51 and S81 buses

s51
s81
Bay Street/Father Capodanno Boulevard Buses
A S81 departs St. George Ferry Terminal
Overview
SystemMTA Regional Bus Operations
OperatorNew York City Transit
GarageCastleton Depot
VehicleOrion VII EPA10
Nova Bus LFS
Began serviceApril 15, 1990 (S51)
2001 (S81)
Route
LocaleStaten Island, New York, U.S.
Communities servedSt. George, Tompkinsville, Stapleton, Clifton, Rosebank, Shore Acres, Fort Wadsworth, Arrochar, South Beach, Midland Beach, Grant City
StartSt. George Ferry Terminal
ViaBay Street, Father Capodanno Boulevard, Midland Avenue, Lincoln Avenue (Grant City– bound)
EndGrant City – Lincoln Avenue and Richmond Road
Length7.5 miles (12.1 km) (S51)
7.7 miles (12.4 km) (S51 Ft Wadsworth Branch/S81)
Other routesS52 Jersey St/Tompkins Av
Service
Operates24 hours (S51)
PM rush hours (S81)
Annual patronage526,083 (2024)
TransfersYes
TimetableS51/S81
 S48
S79
 {{{system_nav}}}  S52
S84 

The S51 and S81 constitute bus routes in Staten Island, New York running primarily on Bay Street, Father Capodanno Boulevard, and Midland Avenue, between St. George Ferry Terminal and Grant City.

The S51 was originally a streetcar route, that was replaced with buses in 1934. The S81 was created in 2001 as a limited-stop version of the S51.