This article from the December 2003 issue of World Tunnelling magazine describes the process of rehabilitating the West Shore Railroad Tunnel for use in the new Hudson Bergen Light Rail Project.
Black and white photograph. Work and train crews pose for the lensman circa 1883 shortly after the opening of the Bergen Tunnel. Rock blasted from the tunnel was used as fill on the riverfront to increase the size of the [railroad's] property.
From Marine Line Equipment - January-September 1992 published by the Ontario and Western Railway Historical Society.