Baltimore City DPW and Gunpowder River Flooding
A full Baltimore City Reservoir and a Nor’easter that brought rain to the Hereford Zone last evening through today combined to create a spillover event at Prettyboy Dam. The Gunpowder River flow rose from 75 Cfs to over 1,190 Cfs. Water temperatures also moved up sharply from 56 to 66 F. This photo taken last night shows a full Reservoir while the storm approached the area. With relatively no freeboard (or buffer) at Prettyboy Dam, and heavy localized rainfall, spillover and related severe flooding occurred throughout the Hereford Area of Gunpowder State Park impacting the riparian habitat of the Gunpowder River. For weeks the River …