sentences:  In July or August 1874, it was extended north along Delaware Avenue (Columbus Boulevard) to a new freight station at Dock Street, replacing the PRR's use of the City Railroad along Market Street.A new alignment for the east-west part was built later.The line passed to Penn Central Transportation in 1968, Conrail in 1976, and was assigned to CSX Transportation in 1999, becoming part of their Harrisburg Subdivision.