Paulinskill Viaduct, Hainesburg NJ (by jeffs4653) Paulinskill Viaduct on the Lackawanna Cutoff of the Delaware Lackawanna  & Western Railroad. At one time the longest concrete railroad bridge  in the world, until surpassed by the Lackawanna on Tunkhannock Viaduct  in Nicholson PA. Abandoned since the 1980s. At ground level, the New  York Susquehanna & Western and Lehigh and New England Railroads  passed underneath (I'm standing on the abandoned NYS&W ROW).  Hainesburg Station was just on the other side of the bridge. To the  south (behind camera) about a 1/2 mile was Hainesburg Junction. See my  Swartswood Junction set.
{}