James River at Buchanan, Botetourt County VA (BNNV2)
Gage Location: Botetourt County, VirginiaSite Location: Botetourt County, Virginia
Latitude: 37.531Longitude: -79.679Elevation: 802.9 ft. MSLDrainage Area: 2073 Sq. Mi.
Minor Stage: 17 ft. Moderate Stage: 21 ft.Major Stage: 26 ft.
First Flood: 1877-10-03Last Flood: 2013-05-08 Crest: 19.58 ft.Datum change: 1927-07-10Number of Floods: 74

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1877-10-03-9999-9999MissingC1
1877-11-2434.9142000MajorC1 C8
1886-04-012785000MajorC1 C9
1889-03-012785000MajorC1 C9
1893-10-13-9999-9999MissingC1
1895-04-091949800MinorC1
1899-03-0519.551900MinorC1
1900-11-2621.459800ModerateC1
1902-03-012576000ModerateC1
1903-03-2417.543800MinorC1
1907-06-141741800MinorC1
1908-02-161949800MinorC1
1913-03-2731105000MajorC1
1915-02-022056100MinorC1
1917-03-0517.744600MinorC1
1918-03-1417.343000MinorC1
1919-01-0318.547800MinorC1
1924-05-1221.560000ModerateC1
1935-01-2323.8270400Moderatenone
1936-03-1826.884100Majornone
1937-01-2117.1241400Minornone
1940-05-311741100Minornone
1942-05-1719.5652300Minornone
1942-05-2218.447400Minornone
1948-12-0417.1542600Minornone
1949-04-1420.1854800Minornone
1950-12-0818.9549800Minornone
1952-03-1217.7342000Minornone
1953-02-2219.1548000Minornone
1954-03-0218.7546400Minornone
1955-03-0719.3648800Minornone
1957-04-0618.7846400Minornone
1960-03-3118.4544700Minornone
1961-10-2117.6842000Minornone
1963-03-1322.361800Moderatenone
1967-03-0820.7755000Minornone
1969-08-2023.3765800Moderatenone
1970-01-0119.8149500Minornone
1971-02-1418.945900Minornone
1971-05-3119.0746600Minornone
1972-02-2718.5244400Minornone
1972-06-2230.49111000Majornone
1973-02-0318.1642900Minornone
1973-03-1819.2347300Minornone
1973-05-2920.3852900Minornone
1973-12-2724.1773400Moderatenone
1975-03-2017.9342000Minornone
1976-10-101738300Minornone
1977-04-0622.8166000Moderatenone
1978-01-2722.3163200Moderatenone
1978-03-1518.8745800Minornone
1978-03-2718.7245200Minornone
1979-02-2519.9150600Minornone
1980-04-1518.2943500MinorF2
1982-06-1318.3743400MinorF2
1984-02-1419.146700MinorF2
1985-11-0538.84179000MajorF2
1987-04-1624.8176100ModerateF2
1992-04-2223.6469900ModerateF2
1993-03-0520.654200MinorF2
1995-01-1622.764800ModerateF2
1996-01-2029.24103000MajorF2
1996-12-0218.7945600MinorF2
1998-01-0919.9551000MinorF2
2003-02-2324.0372000ModerateF2
2003-05-1918.5744600MinorF2
2003-11-2019.6349515MinorF2
2004-09-2925.6661200ModerateF2
2006-06-2618.7237800MinorF2
2006-06-2821.9848300ModerateF2
2007-04-1617.8535100MinorF2
2010-01-2620.1742400MinorF2
2013-01-3117.534100MinorF2
2013-05-0819.5840500MinorF2



Codes and description

C1|Crest information during this period may be incomplete and therefore was not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information during this period looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 07:31 AM Dec 19, 2014