Swollen by days of relentless rain, the Potomac River has ... Maryland — a level not seen in many years. Entire parking areas and park facilities have been inundated as water levels rose from ...

Upstream, the Potomac River is rising rapidly. At Point of Rocks, the river hit 21.5 feet by 4:45 a.m. Thursday and is projected to crest at 23.6 feet, rivaling water levels not seen since 1910.