New Jersey Herald WALPACK — A portion of Route 615 in the Delaware Water Gap National Recreation Area is closed because of the potential collapse of a historic barn onto the highway. Late Monday afternoon, park officials closed the road between Haney's Mill and Pompey Ridge Road until further notice as experts look at the unstable barn at the Chado Farm complex in Walpack Township, where a former Olympic equestrian learned to ride and trained. The side wall of the barn that runs parallel to 615 is bulging and leaning toward the road, posing a hazard to drivers if it were to fall or collapse, park officials said.