Extension of the Pennsylvania railroad's electrified system

THE EXISTING single-phase electrified system of The Pennsylvania Railroad, completed in the early part of 1935, extends from New York, N. Y., through Philadelphia, Pa., to Wilmington, Del., Baltimore, Md., Washington, D. C., and Potomac Yard, Va., for passenger and freight service north and south; and from New York to Philadelphia and Paoli, Pa, for service east and west. Including the trackage used for suburban service, this electrified system now covers a route of 373 miles with 1,343 miles of electrified track.