New York State Route 346 (NY 346) and Vermont Route 346 (VT 346) are short, adjoining state highways in the northeastern United States. Together, they extend for a combined through the towns of Petersburgh in Rensselaer County, New York, and Pownal in Bennington County, Vermont. The bi-state highway begins at an intersection with NY 22 in the hamlet of North Petersburgh and heads generally southeastward across the New York–Vermont state line to a junction with U.S. Route 7 (US 7) in the village of Pownal. Both NY 346 and VT 346 parallel the Hoosick River. The Vermont portion of the highway was originally designated as Vermont Route 112 by 1926. The New York continuation was assigned NY 346 as part of the 1930 renumbering of state highways in New York, and VT 112 was renumbered to VT 346 in the late 1930s to match the designation on the New York side. VT 346, the longer of the two routes at in length, is currently the highest-numbered state highway in Vermont. Route description NY 346 NY 346 begins at an intersection with NY 22 southeast of the Rensselaer County State Forest in North Petersburgh, a hamlet within the town of Petersburgh. The route heads eastward out of the hamlet, crossing over the Little Hoosick River just east of North Petersburgh before following the Hoosic River eastward along the base of a valley surrounding the river. About east of the hamlet, NY 346 meets County Route 95 (CR 95), the only through road that NY 346 intersects between NY 22 and the Vermont state line. Past CR 95, NY 346 turns southeastward, paralleling both the Hoosick River and CR 96 on the other side of the river to the Vermont state line, where the highway becomes VT 346. Unlike NY 346, which is posted with east–west cardinal directions, VT 346 is signed as north–south. VT 346 While NY 346 follows the southern bank of the Hoosic River, VT 346 largely runs along the northern bank. The switch in positioning is made just east of the state line, where VT 346 crosses over the waterway. The route continues eastward, intersecting Indian Massacre Road, the continuation of CR 96, and crossing a Pan Am Railways-owned railroad line on its way to a junction with Lime Kiln Road, a local highway leading to the village of Pownal Center. At this point, VT 346 turns southward