USGS - science for a changing world
Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 14-Day Average Streamflow
 
01665500 RAPIDAN RIVER NEAR RUCKERSVILLE, VA.
LOCATION.--Latitude 38°16'50", Longitude 78°20'25", North American Datum of 1927,
                    Madison County, VA, Hydrologic Unit 02080103.
DRAINAGE AREA.--115 square miles.
PERIOD OF RECORD.--September 1942 to June 1995, October 1998 to current year.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2007.
REGULATION.--Diversion after 1973, estimated 0.77 cfs.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 14-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01665500 plot. RAPIDAN RIVER NEAR RUCKERSVILLE, VA
Provisional Data Subject to Revision

                    

The current 14-day running-average value for 10/14/2008 is 31.71 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


                01665500     RAPIDAN RIVER NEAR RUCKERSVILLE, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
18.7
40.6
56.4
88.9
140
224
325
378
664
 
62
February
21.8
50.5
65.6
101
153
234
339
378
842
 
62
March
38.2
75.6
97.2
130
194
282
406
509
1,020
 
62
April
53.4
80.2
91.4
124
185
286
463
592
920
 
62
May
34.2
64.4
75.8
98.8
156
226
309
390
669
 
62
June
17.9
33.6
40.6
64.7
98.3
161
288
456
3,500
 
62
July
6.31
15.2
20.4
32.6
56.5
97.5
157
243
1,690
 
61
August
1.95
7.61
9.64
21.3
41.7
87.5
180
280
1,570
 
61
September
1.47
6.58
8.98
18.0
37.2
83.2
174
428
1,500
 
61
October
4.59
10.1
12.9
23.6
50.2
136
315
556
1,940
 
61
November
10.5
20.3
24.9
37.9
83.3
164
313
437
1,390
 
62
December
19.6
27.8
37.4
76.4
129
202
345
462
868
 
62
 
       

The current 14-day running-average value for 10/14/2008 is 31.71 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/dp01665500.htm
Page Contact Information: Virginia WSC Webmaster
Page Last Modified: 9/19/2008