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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of Daily 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 Daily Streamflow Conditions
Provisional Data Subject to Revision 02029000 plot. JAMES RIVER AT SCOTTSVILLE, VA
Provisional Data Subject to Revision

                    

The current daily value for 03/22/2017 is 3180.0 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of Daily 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
804
1,300
1,740
3,140
4,770
7,930
13,500
19,800
85,100
 
55
February
830
1,700
2,400
3,900
6,220
9,480
14,700
21,900
86,700
 
55
March
1,720
2,920
3,520
4,680
6,600
10,900
18,500
24,700
99,400
 
55
April
1,370
2,780
3,180
4,190
5,780
8,870
15,600
21,400
60,900
 
55
May
970
1,960
2,260
2,940
4,260
6,720
10,600
14,300
75,400
 
55
June
708
1,220
1,380
1,890
2,700
4,160
7,060
9,680
208,000
 
55
July
350
752
872
1,220
1,880
2,700
4,090
6,230
34,000
 
55
August
370
607
696
992
1,600
2,600
4,760
8,590
135,000
 
55
September
300
542
625
850
1,300
2,180
4,410
7,530
105,000
 
55
October
307
589
700
1,030
1,560
2,900
6,220
11,800
77,200
 
56
November
560
807
919
1,310
2,200
4,050
7,840
11,000
46,700
 
56
December
570
952
1,140
2,050
3,500
5,800
9,970
15,600
81,600
 
55
 
       
Instantaneous minimum flow for period of record = 302 cubic feet per second.

The current daily value for 03/22/2017 is 3180.0 cubic feet per second.

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

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