Saw Mill River Parkway

The Saw Mill River Parkway is a north–south parkway that extends for 28.93 miles (46.56 km) through Westchester County, New York, in the United States. It begins at the border between Westchester County and the Bronx, where it continues into New York City as the Henry Hudson Parkway, and heads generally northeastward to an interchange with Interstate 684 (I-684) and New York State Route 35 (NY 35). At its north end, the parkway serves as a collector/distributor road for both highways as it passes east of the hamlet of Katonah. The parkway is named for the Saw Mill River, which the highway parallels for most of its length.

The Saw Mill serves as an important connection from the Taconic State and Sprain Brook parkways to the Tappan Zee Bridge and New York State Thruway. It is not a limited-access highway as several of its exits are signalized at-grade intersections. However, most of the road has a high speed limit in spite of this fact. The Saw Mill River Parkway is inventoried by the New York State Department of Transportation (NYSDOT) as New York State Route 987D, an unsigned reference route designation.