USGS Water-Year Summary 2019
01610000 POTOMAC RIVER AT PAW PAW, WV
LOCATION - Lat 39°32'19.9", long 78°27'20.2" referenced to North American Datum of 1983, Allegany County, MD, Hydrologic Unit 02070003, near left bank at upstream side of bridge on Maryland State Highway 51 at Paw Paw, 3.3 mi downstream from Little Cacapon River, and at mile 277.
DRAINAGE AREA - 3,129 mi².
- WDR WV-97-1: Drainage area.
PERIOD OF RECORD - October 1938 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 487.21 ft above North American Vertical Datum of 1988. Prior to Mar. 25, 1939, nonrecording gage at bridge 250 ft downstream at same gage datum. March 25, 1939 to March 13, 2019 at site 250 ft upstream at same datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known, 54.0 ft on Mar. 18, 1936, discharge, 240,000 ft³/s, from rating curve extended above 85,000 ft³/s on basis of slope-area measurement of peak flow at site 5.0 mi upstream at Okonoko, WV.