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LOCATION.--Lat 39°08'03.9", long 76°48'58.2", Howard County, MD, Hydrologic Unit 02060006, on left bank
   20 ft downstream from bridge on southbound lanes of U.S. Highway 1, 0.4 mi southeast of Savage, 0.9 mi 
   downstream from Middle Patuxent River, and 16.2 mi upstream from mouth.
DRAINAGE AREA.--98.4 mi2.
PERIOD OF RECORD.--October 1939 to September 1958.  Annual maximums, water years 1959-66, 68, 72, 75.
   October 1975 to September 1980. May 1985 to current year. Prior to December 1939, monthly discharge
   only, published in WSP 1302.
REVISIONS HISTORY.--WRD MD-DE-89: 1985, 1987-88(P).
GAGE.--Water-stage recorder and crest-stage gage.  Datum of gage is 122.18 ft above North American 
   Vertical Datum of 1988. Prior to October 1958, water-stage recorder at site 400 ft downstream at same gage
   datum. October 1958 to September 1972, crest-stage gage at site 400 ft downstream on right bank at same gage
   datum. October 1975 to September 1980, water-stage recorder at site 500 ft downstream at same gage datum.
REMARKS.--Some diurnal fluctuation at low flow caused by plant 0.5 mi upstream. U.S. Geological Survey
   satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 35,400 ft3/s, June 22, 1972, gage height, 25.40 ft;
   minimum discharge, 1.1 ft3/s, Aug. 21, 22, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Howard County-Bureau of  
   Utilities, and the U.S. Geological Survey.
Boating safety tips
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Period of Record
1939-10-01  2024-04-15


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