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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-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 2015.
REGULATION.--Diversion after 1973, estimated 0.77 cfs.
GAGE OPERATION.--Virginia Department of Environmental Quality - Water Division.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 01665500 plot. RAPIDAN RIVER NEAR RUCKERSVILLE, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 23.43 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 28-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
19.9
39.6
56.9
91.2
145
223
307
372
521
 
70
February
20.3
53.6
69.3
107
158
231
304
361
542
 
70
March
41.1
76.1
99.2
134
192
273
362
457
644
 
70
April
57.4
91.6
109
147
198
314
457
537
721
 
70
May
45.9
73.2
86.0
118
176
249
364
437
655
 
70
June
22.3
41.5
56.6
82.8
130
196
320
395
1,790
 
70
July
6.79
20.6
27.0
39.5
72.9
110
195
260
963
 
69
August
4.02
9.19
13.5
25.7
45.4
88.6
158
267
839
 
69
September
3.11
7.03
9.32
20.2
39.8
82.4
179
311
878
 
69
October
4.95
9.75
13.2
23.0
47.3
127
307
542
1,060
 
68
November
9.36
20.6
24.6
38.7
83.8
171
286
350
1,070
 
70
December
19.9
28.8
36.9
73.8
128
198
343
447
790
 
70
 
       

The current 28-day running-average value for 03/22/2017 is 23.43 cubic feet per second.

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

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