Pennsylvania Route 819
Pennsylvania Route 819 (PA 819) is a state highway located in Fayette and Westmoreland counties in Pennsylvania, United States. The southern terminus is at PA 201 in Vanderbilt. The northern terminus is at PA 66 in Oklahoma. History The portion of the highway that runs through Mount Pleasant borough is said to have evolved from a Native American path that predated European settlers. Route description PA 819 begins at an intersection with PA 201 in the borough of Vanderbilt in Fayette County, heading north on two-lane undivided Dawson Road. The road passes through residential areas, crossing into Dunbar Township and heading into the community of Dickerson Run. Here, the route curves northwest, turning north onto Main Street and west onto 2nd Street as it passes more homes. PA 819 curves north onto Dawson Road and leaves the community, heading northeast across the Youghiogheny River into the borough of Dawson. Here, the route becomes Laughlin Street and passes more residences, crossing CSX's Keystone Subdivision railroad line and turning southeast onto Railroad Street, running parallel to the railroad tracks. PA 819 turns northeast onto Main Street and runs through more residential areas before becoming the border between Dawson to the west and Lower Tyrone Township to the east as it heads into wooded areas. The route fully enters Lower Tyrone Township and heads into open agricultural areas with some trees and homes, turning east onto Dawson Scottdale Road and curving northeast again. The road winds north through more rural areas before turning northeast and crossing into Upper Tyrone Township. Here, the route passes through Tintsman and crosses under a Wheeling and Lake Erie Railway line, becoming Scottdale Dawson Road as it runs through areas of farms and woods with some residences. PA 819 crosses Jacobs Creek into East Huntingdon Township in Westmoreland County and turns north, running through farmland with some homes. The road turns east and enters the borough of Scottdale, becoming South Broadway Street and heading northeast past homes. The route curves north-northeast and continues into the commercial downtown, becoming North Broadway Street. PA 819 heads north into residential areas and runs to the west of the Southwest Pennsylvania Railroad's Radebaugh Subdivision line, turning east onto Porter Avenue and crossing the railroad tracks. The road becomes the border between South Huntingdon Township to the north and Scottdale to the south as it passes more homes with some businesses, fully entering Scottdale again before heading into South Huntingdon Township and turning northeast. The route heads through farmland and woodland with some residential and commercial development, passing through West Overton. PA 819 comes to an interchange with U.S. Route 119 (US 119) and widens into a four-lane divided highway, heading into business areas. The road curves north and becomes two lanes and undivided, running through open agricultural areas with some housing developments. The route turns northeast onto South Diamond Street and briefly forms the border between the borough of Mount Pleasant to the northwest and Mount Pleasant Township to the southeast before