Township Line Run

Township Line Run is a 5.82 mi (9.37 km) long 2nd order tributary to Sewickley Creek in Westmoreland County, Pennsylvania. Township Line Run straddles to boundary between Unity and Hempfield Township and of Mount Pleasant and Hempfield Township. This is the only stream of this name in the United States.^[2]

Township Line Run Tributary to Sewickley Creek
Location of Township Line Run mouth Show map of Pennsylvania Township Line Run (the United States) Show map of the United States
Location
Country	United States
State	Pennsylvania
County	Westmoreland
Physical characteristics
Source	Slate Creek divide
• location	Denison, Pennsylvania[1]
• coordinates	40°16′41″N 079°30′04″W[2]
• elevation	1,345 ft (410 m)[1]
Mouth	Sewickley Creek
• location	Armbrust, Pennsylvania[3]
• coordinates	40°13′23″N 079°32′54″W[2]
• elevation	950 ft (290 m)[3]
Length	5.82 mi (9.37 km)[4]
Basin size	6.49 square miles (16.8 km2)[5]
Discharge
• location	Sewickley Creek
• average	9.29 cu ft/s (0.263 m3/s) at mouth with Sewickley Creek[5]
Basin features
Progression	Sewickley Creek → Youghiogheny River → Monongahela River → Ohio River → Mississippi River → Gulf of Mexico
River system	Monongahela River
Tributaries
• left	unnamed tributaries
• right	unnamed tributaries
Waterbodies	Unity Reservoir
Bridges	Chaucer Drive, Toppers Road, Kings Nursery Road, Lakewood Road (x2), PA 130, Pacek Road, Bailey Farm Road, Bennetts Road, Mt. Pleasant Road, Brinkerton Road, Birdie Lane, Pores Road, Harhai Road, Armbrust Brinkerton Road

Course

Township Line Run rises in Denison, Pennsylvania,^[1] and then flows southwest to join Sewickley Creek at Armbrust.^[3]

Watershed

Township Line Run drains 6.49 square miles (16.8 km²) of area, receives about 42.7 in/year of precipitation, has a wetness index of 371.26, and is about 48% forested.^[5]