USGS Water-Year Summary 2021
01652545 FOURMILE RUN ABOVE HIGHWAY 1 AT ALEXANDRIA, VA
LOCATION - Lat 38°50'24.8", long 77°03'11.9" referenced to North American Datum of 1983, Alexandria City, VA, Hydrologic Unit 02070010, on right bank, 250 feet upstream of US Highway 1 at the City of Alexandria and Arlington County border.
PERIOD OF RECORD - July 2006 to current year.
GAGE - Water-stage recorder. Datum of gage is 0.00 ft NAVD of 1988.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 4.99 ft, Sept. 2, 2006; minimum elevation, not determined, less than -2.73 ft on several days.