USGS Water-Year Summary 2023

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.

REVISIONS HISTORY - WSP 711: 1930.

SURFACE-WATER RECORDS

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.

REMARKS -

Water Year 2023:  Records good.  No estimated discharges.  

Water Years 2017-2022: Records good, except those for estimated discharges, which are poor.

Water Years 2014-2016: Records good, except those for estimated daily discharges, which are poor.

Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.

Occasional regulation at low and medium flows since September 1972 by Linganore Reservoir, total capacity, 883,200,000 gal, 2.8 mi upstream from station. U.S. Geological Survey satellite data-collection platform at station.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1889 reached a stage of 30 ft, from floodmarks, discharge, 56,000 ft³/s.