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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 7-Day Average Streamflow
 
03165500 NEW RIVER AT IVANHOE, VA
LOCATION.--Latitude 36°50'05", Longitude 80°57'10", North American Datum of 1927,
                    Wythe County, VA, Hydrologic Unit 05050001.
DRAINAGE AREA.--1,350 square miles.
PERIOD OF RECORD.--August to December 1927, October 1929 to September 1978, February 1996 to current year. Monthly discharge only for some periods, published in WSP 1305. Gage-height records collected in vicinity, October 1916 to July 1943, are contained in reports of the National Weather Service.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Flow regulated by powerplants about 2.8 and 5.5 miles upstream.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 7-Day Average Streamflow Conditions
Provisional Data Subject to Revision 03165500 plot. NEW RIVER AT IVANHOE, VA
Provisional Data Subject to Revision

                    

The current 7-day running-average value for 10/14/2008 is 861.29 cubic feet per second.

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


                03165500     NEW RIVER AT IVANHOE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
390
713
924
1,530
2,130
2,990
4,170
5,370
11,200
 
60
February
492
997
1,240
1,780
2,530
3,480
4,780
6,010
12,300
 
61
March
887
1,290
1,570
2,070
2,630
3,650
4,980
6,300
12,100
 
61
April
842
1,390
1,530
1,920
2,530
3,440
4,970
5,980
15,800
 
61
May
762
1,110
1,270
1,610
2,030
2,700
3,690
4,490
11,100
 
61
June
503
849
942
1,210
1,640
2,330
3,150
4,070
11,700
 
61
July
398
659
808
1,050
1,390
1,800
2,280
3,020
9,420
 
61
August
297
568
669
922
1,230
1,660
2,540
3,300
24,900
 
61
September
310
490
601
750
981
1,480
2,580
3,330
12,500
 
62
October
366
522
594
751
1,160
1,820
3,000
4,200
10,100
 
60
November
456
594
668
894
1,420
2,140
3,330
4,030
20,400
 
61
December
367
686
793
1,150
1,740
2,460
3,460
4,140
10,200
 
61
 
       

The current 7-day running-average value for 10/14/2008 is 861.29 cubic feet per second.

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

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