 About north of the interchange of PA 28 (in the borough of Etna) is a very sharp and hazardous curve, known to Pittsburghers as "Mae West Bend".The site of numerous accidents over the years, this curve has recently been widened by razing the deteriorating buildings along the inner edge of the curve and digging out the mountainside so that two lanes ran in each direction throughout the curve (Southbound travellers previously had to merge left on the curve as the right lane ended).north of I-80, PA 8 becomes a limited-access highway.