 In the village of North Vandergrift, the concurrency between PA 56 and PA 66 ends when PA 66 intersects PA 66 Alternate and PA 56 and PA 66 ALT begin their own concurrency into Vandergrift.As PA 66 continues to parallel the Kiskiminetas River, it is called Lincoln Avenue.While paralleling the Kiskiminetas River, PA 66 has snake like curves.