New York State Route 9J | ||||
|---|---|---|---|---|
 Map of the Hudson Valley in eastern New York with NY 9J highlighted in red | ||||
| Route information | ||||
| Auxiliary route of US 9 | ||||
| Maintained by NYSDOT and the city of Rensselaer | ||||
| Length | 22.35 mi[1] (35.97 km) | |||
| Existed | 1930[2]–present | |||
| Major junctions | ||||
| South end |  US 9 in Stockport | |||
| North end |  US 9 / US 20 in Rensselaer | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Columbia, Rensselaer | |||
| Highway system | ||||
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New York State Route 9J (NY 9J) is a north–south state highway in the Hudson Valley region of New York in the United States. It begins at an intersection with US 9 in the Columbia County town of Stockport and extends for 22.35 miles (35.97 km) to an interchange with US 9 and US 20 in the Rensselaer County city of Rensselaer. The route parallels the Hudson River for its entire length, and several parts of the highway run directly alongside the river. NY 9J was assigned to its current alignment as part of the 1930 renumbering of state highways in New York.