New York State Route 66 (NY 66) is a state highway in the Capital District of New York in the United States. The route begins at an intersection with US 9 and NY 23B in the Columbia County city of Hudson and ends at a junction with NY 2 in the Rensselaer County city of Troy. While both Hudson and Troy are located on the Hudson River, NY 66 follows a more inland routing between the two locations to serve several rural villages and hamlets, including Chatham and Sand Lake. NY 66 overlaps with U.S. Route 20 (US 20) and NY 43, two regionally important east–west highways, in Nassau and Sand Lake, respectively.
NY 66 proceeding north from its junction with NY 23B in the city of Hudson
NY 66 at the roundabout in the northern end of the village of Chatham
NY 66 northbound at the junction with NY 43 in Denault Corners
NY 66 northbound at the junction with NY 2 in Troy
New York State Route 23B (NY 23B) is an east–west state highway located in western Columbia County, New York, in the United States. The route is a former section of NY 23 that runs for 6.71 miles (10.80 km) from NY 9G southwest of Hudson to NY 9H in Claverack-Red Mills. It provides direct access to the city of Hudson from the Rip Van Winkle Bridge whereas NY 23 bypasses it to the south. NY 23B was assigned in the late 1950s after NY 23 was moved onto its current alignment south of Hudson.
Along with US 9, NY 23B heads eastbound through Hudson.