This railroad line saw freight train service provided by the PRR after PRR assumed operations of the Chester & Delaware River.
In fact, it was still in use after the PRR electrified the Northeast Corridor.
In 1976, the government freight railroad: the Consolidated Rail Corporation, better known as Conrail, assumed operations from the bankrupt Penn Central, which had gone bankrupt in 1970.
In 1999, when Conrail was split into CSX Transportation and the Norfolk Southern Railway, NS got the tower and the Chester and Delaware River line.
With the NEC used only by a few Norfolk Southern local services, SEPTA's Wilmington/Newark Line train and Amtrak, it is unlikely Hook will open up again any time soon.