U.S. 15 & Rte. 581, Camp Hill, PA The ramp off northbound U.S. 15 to westbound Route 581 was closed permanently at 9 p.m. Monday night. Instead motorists will be making a left turn onto a newly established ramp further on the northbound lane. New ramp lane for U.S. 15 to Route 581, Camp Hill A signal light has been placed for motorists traveling north on U.S. Route 15 to turn onto westbound Route 581, Camp Hill. U.S. 15 and Route 581, Camp Hill The ramp off northbound U.S. 15 to westbound Route 581 was closed permanently at 9 p.m. Monday night. Instead motorists will be making a left turn onto a newly established ramp further on the northbound lane.