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 looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information 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: 07:20 AM Nov 12, 2013