Location context and information
LOCATION.-- On right bank at Brighton Dam, 500 ft downstream from Triadelphia Reservoir, 1.3 mi east of Brighton, and 92 mi upstream from mouth. PERIOD OF RECORD.-- October 1980 to current year. GAGE.--Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 303.01 ft above North American Vertical Datum of 1988. June 1978 to October 1980, nonrecording gage 300 ft upstream on left bank at different gage datum. REMARKS.-- Flow completely regulated by Triadelphia Reservoir, 500 ft upstream, usable capacity, 6,200,000,000 gal; no dead storage. EXTREMES OUTSIDE PERIOD OF RECORD.-- Flood of June 22, 1972, reached a discharge of 17,800 ft³/s. Data provided by Washington Suburban Sanitary Commission. PERIOD OF DAILY RECORD (Water Quality).-- TEMPERATURE: April 2013 to October 10, 2017.
