High Quality Content by WIKIPEDIA articles! New York State Route 198 (NY 198) is a state highway located entirely within the city of Buffalo, New York, in the United States. It is named the Scajaquada Expressway for Scajaquada Creek, which it parallels as it heads across northern Buffalo. NY 198 connects the Niagara Section of the New York State Thruway (Interstate 190) in the Black Rock neighborhood to the Kensington Expressway (NY 33) on Buffalo`s east side. On average, the highway carries over 37,000 cars per day.