 In 1994, stations were constructed along Norfolk Southern's Washington Secondary (to Washington) at Mount Olive and Hackettstown, extending the line into Warren County and providing rail service to the International Trade Center (ITC) along with tourist attraction, Waterloo Village.Service took effect on November 5, 1994 from Netcong to Hackettstown.The Washington Secondary was the original alignment of the Delaware, Lackawanna and Western Railroad's Main Line via Washington and Portland, Pennsylvania.