page_title: New York State Route 157A
section_title: Route description
hierarchical_section_title: New York State Route 157A / Route description
caption_attribution_description: English: Eastbound on New York State Route 157A in the town of Berne between Warner Lake and Thompson Lake.
context_page_description: New York State Route 157A is an east–west state highway located in Albany County, New York, in the United States. It serves as a 5.88-mile-long loop route of NY 157 through the towns of Knox and Berne, veering a considerable distance to the south to serve the hamlet of East Berne and indirectly connect NY 157 to NY 443. NY 157A rejoins NY 157 near the access road to Thompson's Lake State Park, which is along NY 157. It is a two-lane highway its entire length. NY 157A, like its parent route, was assigned in 1930 to its current routing.
context_section_description: NY 157A begins at a rural intersection with NY 157 in the southeastern portion of the town of Knox. Although it is signed as an east–west route, it heads generally southwestward at first, following the two-lane Warners Lake Road through a forested yet populated area just south of NY 157. The homes and forests give way to open fields soon afterward, and the rolling terrain follows NY 157A into the adjacent town of Berne. Here, the number of homes alongside the highway rises as it approaches Warner Lake, a small waterbody northwest of the hamlet of East Berne. It runs along the eastern shore of the lake, serving a continuous line of residences on its way to a junction with Thacher Lake Road at the southeastern corner of the lake.
  At this point, Warners Lake Road ends and NY 157A turns left to return to the northeast along Thacher Lake Road, creating a near U-turn in the route's alignment. South of the junction, Thacher Lake Road continues to an intersection with NY 443 in nearby East Berne as NY 910J, an unsigned reference route. From Warner Lake, NY 157A proceeds across another stretch of open, undeveloped terrain, passing only a handful of homes before terminating at a junction with NY 157 in the hamlet of Thompson's Lake. The waterbody that gives the community its name is due north of the junction, and Thompson's Lake State Park is a short distance to the northwest along NY 157.
caption: Eastbound on NY 157A in Berne between Warner Lake and Thompson Lake
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