High Quality Content by WIKIPEDIA articles! New York State Route 28A (NY 28A) is an east–west state highway in Ulster County, New York, in the United States. It extends for 19.82 miles (31.90 km) along the south side of Ashokan Reservoir in Catskill Park, serving as a southerly alternate route of NY 28 through the area. Many of the communities along its length, such as West Shokan and Olivebridge, are the remnants or recreations of those condemned for the reservoir`s construction. Near Olivebridge, NY 28A intersects NY 213, the only other state route that NY 28A intersects aside from its parent, NY 28.