- Western Terminus:
- Bronx Parkway and Ardsley Road (CR 78) in Greenburgh
- Eastern Terminus:
- Popham Road and Garth Road in Scarsdale
- 0.06 miles
Ardsley Road is an east/west route extending from Ardsley to Scarsdale. For most of its length, it is either a local street or designated CR 78. The easternmost section is a bridge over the Bronx River from Greenburgh to Scarsdale and is designated CR 78A. On the east side of the bridge, Ardsley Road becomes Popham Road, a local street.