Page Loading - Please Wait...
Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown.
LOCATION.--Lat 39°26'59.2", long 77°43'48.7", Washington County, Hydrologic Unit 02070004, on left bank 400 ft downstream from Burnside Bridge, 1.0 mi southeast of Sharpsburg, and 4.0 mi upstream from mouth. DRAINAGE AREA.--281 mi2. PERIOD OF RECORD.--June 1897 to September 1905, August 1928 to current year. Monthly discharge only for some periods, published in WSP 1302. REVISED RECORDS.--WSP 192: 1897-1905. WSP 726: Drainage area. WSP 1432: 1929-31(M), 1933, 1935(M), 1937(M), 1949(M), 1952(M). GAGE.--Water-stage recorder and crest-stage gage. Concrete control since Mar. 29, 1934. Datum of gage is 310.40 ft above North American Vertical Datum of 1988. June 24, 1897, to Aug. 25, 1905, nonrecording gage a few hundred feet downstream from Middle Bridge, 1.2 mi upstream at gage datum 12 ft higher. Aug. 21, 1928, to July 13, 1933, nonrecording gage at Burnside Bridge, 0.1 mi upstream at present gage datum. REMARKS.--Some diurnal fluctuation caused by power plant upstream from station. Since 1928 records include pumpage from the Potomac River for municipal supply of Hagerstown. This water later enters Antietam Creek upstream from station as sewage. Records adjusted for monthly and annual mean inflow from January 1930 to September 2011. U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,600 ft3/s, July 20, 1956, gage height, 16.73 ft; minimum discharge, 9.4 ft3/s, Nov. 22, 1957, result of construction work upstream from station. COOPERATION.--Funding for the operation of this station is provided by the Maryland State Highway Administration, and the U.S. Geological Survey.
|Boating safety tips|
|Most Recent |
Value Jan 22