The National Park Service closed river access at the Delaware River Water Gap Recreation Area on Saturday due to high water levels. The access points will remain closed until river levels drop below 15 feet at the Montague gauge on the New Jersey side of the river, the park service said in a statement. River levels are expected to crest at 17 feet on Saturday afternoon and may drop through the weekend, officials said. Flooding is not expected, the park service said. Minor flooding starts when the river levels reach beyond 23 feet at this gauge. Once the river and access points reopen, a proper…