Along its routing, PA 99 is known as Interchange Road, Edinboro Road, Main Street, Forest Street, Erie Street, Meadville Street, and McClellan Street.
It previously shared an official SR designation with Interstate 99 (I-99) but was changed in 2008 to be officially SR 0699.[2]
Route description
PA 99 northbound in Cambridge Township
PA 99 begins at an intersection with US 6/US 19 near the northern edge of the borough of Cambridge Springs. The route heads northwest, crossing Little Conneauttee Creek and Conneauttee Creek at Drakes Mills midway between Cambridge Springs and the Crawford-Erie county line. Just south of the county line the route crosses Torry Run, a tributary of Conneauttee Creek, twice. North of the county line, PA 99 crosses the creek once more and follows the waterway into the borough of Edinboro. Within the borough, PA 99 passes by Edinboro University of Pennsylvania south of an intersection with U.S. Route 6N in the center of the borough. The route continues northward, following the eastern edge of Edinboro Lake for a short distance.
Near McKean, PA 99 begins to parallel Interstate 79 as both roadways approach the city of Erie. Midway between McKean and Erie, PA 99 passes over Interstate 90 east of its interchange with I-79. Just south of the city limits in the Millcreek Township community of Kearsarge, PA 99 separates from I-79 and turns east at a T-intersection to access US 19, where PA 99 terminates.
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