USGS - science for a changing world
Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
02029000 JAMES RIVER AT SCOTTSVILLE, VA
LOCATION.--Latitude 37°47'50", Longitude 78°29'30", North American Datum of 1927,
                    Albemarle County, VA, Hydrologic Unit 02080203.
DRAINAGE AREA.--4,581 square miles.
PERIOD OF RECORD.--October 1924 to current year. Monthly discharge only for some periods, published in WSP 1303.
DURATION STATISTIC COMPUTATION PERIOD.--October 1924 to December 1979.
REGULATION.--Flow regulated since December 1979 by Lake Moomaw 198 miles upstream, since October 1984 by Back Creek Lake 226 miles upstream, and since January 1985 by Little Back Creek Lake 229 miles upstream. Large diurnal fluctuations caused by powerplants upstream of gage during periods of low-flow. Flow augmented by summertime releases since 1982.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02029000 plot. JAMES RIVER AT SCOTTSVILLE, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 03/22/2017 is 2403.57 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 14-Day Average Streamflow
            Flow values in cubic feet per second


                02029000     JAMES RIVER AT SCOTTSVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
811
1,390
1,980
3,370
5,120
8,180
13,000
15,800
26,500
 
55
February
1,030
1,660
2,470
4,190
7,060
10,700
14,400
17,100
24,200
 
55
March
1,460
3,140
3,820
5,230
7,710
11,400
16,500
21,100
35,600
 
55
April
1,640
3,150
3,680
4,920
7,080
11,100
16,300
18,800
31,300
 
55
May
1,400
2,320
2,600
3,460
5,130
7,960
11,000
13,400
25,400
 
55
June
923
1,470
1,660
2,270
3,280
5,150
8,340
11,200
36,900
 
55
July
416
904
1,080
1,390
2,090
2,850
4,610
6,330
37,700
 
55
August
433
659
824
1,090
1,780
2,800
4,990
10,400
29,200
 
55
September
353
603
683
903
1,450
2,490
6,130
9,690
29,000
 
55
October
420
601
711
1,050
1,670
3,320
7,220
11,300
25,600
 
55
November
586
816
945
1,340
2,270
4,580
7,610
9,370
26,400
 
56
December
752
985
1,170
2,110
3,630
6,100
8,880
14,000
30,200
 
55
 
       

The current 14-day running-average value for 03/22/2017 is 2403.57 cubic feet per second.

---- Provisional Data Subject to Revision ----

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://va.water.usgs.gov/duration_plots/htm_14/dp02029000.htm
Page Contact Information: Virginia WSC Webmaster
Page Last Modified: 6/19/2016