Posted on December 18, 2023December 18, 2023 by L. L. CoblePhoto of the Day Torrential rains throughout the Susquehanna watershed last night have the river’s main stem on the rise today. By late this afternoon, the Northwest Lancaster County River Trail’s underpass beneath the Shock’s Mill Bridge was just 18 inches from inundation. An additional seven feet or more of flood water is expected at this location by the time the river reaches its crest on Wednesday.