USGS Water-Year Summary 2020
01643000 MONOCACY RIVER AT JUG BRIDGE NEAR FREDERICK, MD
LOCATION - Lat 39°24'10.2", long 77°21'57.9" referenced to North American Datum of 1983, Frederick County, MD, Hydrologic Unit 02070009, on right bank 500 ft downstream from Interstate 70 highway bridge, 0.4 mi downstream from Linganore Creek, 2.0 mi east of Frederick, and 16.9 mi upstream from mouth.
DRAINAGE AREA - 817 mi².
- WSP 711: 1930.
PERIOD OF RECORD - October 1929 to current year. Monthly discharge only for October, November 1929, published in WSP 1302.
GAGE - Water-stage recorder and crest-stage gage. Nonrecording gage at site 0.2 mile downstream. Datum of gage is 231.21 ft above North American Vertical Datum of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1889 reached a stage of 30 ft, from floodmarks, discharge, 56,000 ft³/s.