Appomattox River at Matoaca, Chesterfield County VA (MTCV2)
Gage Location: Dinwiddie County, Virginia Site Location: Chesterfield County, Virginia
Latitude: 37.225Longitude: -77.475Elevation: 68.3 ft. MSLDrainage Area: 1342 Sq. Mi.
Minor Stage: 10 ft. Moderate Stage: 13 ft.Major Stage: 15 ft.
First Flood: 1971-05-31Last Flood: 2006-11-16 Crest: 10.29 ft.Datum change: 1969-10-30Number of Floods: 24

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1971-05-3110.710500MinorF2
1971-10-2314.1-9999ModerateF2
1972-06-2714.622800ModerateF2
1972-10-0718.3940800MajorF2
1975-03-1912.3115200MinorF2
1978-03-1211.9814200MinorF2
1979-02-2614.3722000ModerateF2
1979-10-0313.0917700ModerateF2
1983-03-2110.6110900MinorF2
1984-02-1612.6316200MinorF2
1985-11-0612.0714400MinorF2
1987-04-1812.0414300MinorF2
1993-03-0611.3212500MinorF2
1994-03-0411.112200MinorF2
1996-09-1211.1712300MinorF2
1998-03-2111.9714100MinorF2
1999-09-1611.5813100MinorF2
2003-03-2310.3710925MinorF2
2003-04-1110.1410535MinorF2
2003-05-2614.6125900ModerateF2
2003-09-2012.8716875MinorF2
2004-08-3113.5721800ModerateF2
2006-10-0910.7312900MinorF2
2006-11-1610.2911700MinorF2



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