Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 02056000

Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

Print this page
USGS Water-Year Summary 2020
LOCATION - Lat 37°15'18", long 79°52'18" referenced to North American Datum of 1927, Roanoke County, VA, Hydrologic Unit 03010101,

on right bank 200 ft downstream from power plant of American Electric Power at Niagara, 2 mi downstream from Tinker Creek, 2.1 mi southeast of Vinton, and at mile 355.3.



DRAINAGE AREA - 509 mi².
REVISIONS HISTORY - WSP 972: 1927(M), 1929(M), 1934(M), 1937(M). WSP 1303: 1928, 1930, 1933-38, 1940. WDR VA-72-1: 1928(M), 1930(M), 1933(M), 1935-36(M), 1938(M), 1940, 1944-45(M), 1948-49(M), 1951(M), 1955(M), 1960(M), 1967(M), 1969(M). OFR 2006-1308: Drainage area.
PERIOD OF RECORD - October 1926 to current year.
GAGE - Water-stage recorder. Datum of gage is 819.7 ft, NAVD88.
REMARKS - Flow regulated by dam and power plant 200 ft upstream from station. Maximum discharge, 52,300 ft³/s, from rating curve extended above 12,000 ft³/s on basis of slope-area measurements at gage heights 18.98 ft and 25.30 ft.
PERIOD OF RECORD - November 2006 to June 2009.
PERIOD OF DAILY RECORD - March 2007 to June 2009.
INSTRUMENTATION - Specific conductance and water temperature monitor. Electronic data logger with 15-minute recording interval.
SPECIFIC CONDUCTANCE: Maximum, 860 microseimens/cm, Mar. 3, 2009; minimum, 166 microseimens/cm, Apr. 28, 2008.
WATER TEMPERATURE: Maximum, 28.6°C, Aug. 10, 2007; minimum, 1.3°C, Jan. 17, 2009.