Braddocks RunBraddocks Run is a long 2nd order tributary to the Youghiogheny River in Somerset County, Pennsylvania.Variant namesAccording to the Geographic Names Information System, it has also been known historically as:Braddock RunCourseBraddocks Run rises about 1 mile south of Addison, Pennsylvania, and then flows northwest to join the Youghiogheny River in Youghiogheny River Lake about 0.25 miles south of Somerfield.WatershedBraddocks Run drains of area, receives about 45.7 in/year of precipitation, has a wetness index of 367.96, and is about 62% forested.