"Celebrating 172 Years of Railroad." Enjoy food, vendors and music with three areas to explore: Shappell Park, Phillipsburg Union Station and Delaware River Railroad Excursions. The first railroad to arrive in Phillipsburg was the Central Railroad of New Jersey (CNJ) which opened on July 2, 1852. The Phillipsburg Railroad Historians will host an open house from 10am- 4pm. The museum and car shop will be open for inspection and the Centerville and Southwestern miniature railroad will be in operation!