PA Route 866 | ||||||||||
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Route information | ||||||||||
Maintained by PennDOT | ||||||||||
Length: | 22.435 mi (36.106 km) | |||||||||
Major junctions | ||||||||||
South end: | PA 36 in Woodbury | |||||||||
PA 164 in Martinsburg | ||||||||||
North end: | US 22 in Frankstown Township | |||||||||
Location | ||||||||||
Counties: | Bedford, Blair | |||||||||
Highway system | ||||||||||
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Pennsylvania Route 866 (PA 866) is a 22.4-mile-long (36.0 km) state highway located in Bedford and Blair Counties in central Pennsylvania. The southern terminus is at PA 36 in Woodbury. The northern terminus is at US 22 in Frankstown Township. The road between Martinsburg and Williamsburg is a narrow, notorious stretch of up-and-down dips.
PA 866 begins at an intersection with PA 36 in Woodbury Township, Bedford County, heading northeast on two-lane undivided Curryville Road. The road heads through open agricultural areas with some woods. The route crosses into North Woodbury Township in Blair County, where it passes through more farmland prior to heading through the residential community of Curryville. From here, PA 866 continues through open farm fields with some homes, passing to the west of Altoona–Blair County Airport. The road heads north-northeast into Martinsburg and becomes South Market Street, passing homes and a few businesses. In the commercial center of town, the route crosses PA 164 and becomes North Market Street, heading past more residences. PA 866 briefly becomes the border between Martinsburg to the west and North Woodbury Township to the east before crossing back into North Woodbury Township and becoming Piney Creek Road, heading into agricultural areas.