CECIL TOWNSHIP, Pa. — The Southern Beltway southern terminus at the Washington County line is set to be completely open to traffic Friday. The $800 million new toll road that connects Interstate 79 with the Pittsburgh International Airport has been open to vehicle traffic since October of last year, but only ramps for I-79 north traffic onto the toll road and eastbound 579 traffic to I-79 south were opened at that time. Friday, drivers coming south on the interstate will be able to access the toll road. Additionally, ramps will be open so toll road drivers can access I-79 north and Morganza Road. A ramp will also be open for drivers to access I-79 South from Morganza Road via the beltway. A turnpike spokesperson says all ramps at the interchange will be open by 6:00 p.m. Friday.