KANAWHA RIVER BASIN

03167000  REED CREEK AT GRAHAMS FORGE, VA

LOCATION.--Lat 36 degrees 56'22", long 80 degrees 53'13", Wythe County, Hydrologic Unit 05050001, on left bank 20 ft downstream   
  from bridge on State Highway 619 at Grahams Forge, 2.2 mi downstream from Glade Creek, and at mile 7.3.

DRAINAGE AREA.--247 mi2.

PERIOD OF RECORD.--July 1908 to September 1916, January 1927 to current year.  Monthly discharge only for some   
  periods, published in WSP 1305.

REVISED RECORDS.--WSP 1235:  1912-13, 1915-16.  WSP 1275:  1911, 1927-28(M), 1930-34(M).  WSP 1705:  1913(M),   
  1916(M), 1957 calendar year runoff.  WSP 1725:  1915 calendar year runoff.  WDR VA-92-1:  1984-86(P), 1987,   
  1988-89(P), 1990-91.

GAGE.--Water-stage recorder.  Datum of gage is 1,924.65 ft above sea level.  Prior to Oct. 1, 1916, nonrecording 
  gage at same site at datum 0.68 ft lower.  Feb. 3, 1927, to Oct. 28, 1934, and June 11, 1974, to July 22, 1975, 
  nonrecording gage, at present site and datum.

REMARKS.--Records good except those for periods with ice effect, Dec. 8-10, 26-31, Jan. 7-13, and Feb. 2-7, and 
  periods above 2,000 ft3/s, Jan 15, 16, which are fair.  Occasional diurnal fluctuation at low flow caused by 
  mills upstream from station.  Maximum discharge, 17,500 ft3/s, from rating curve extended above 7,600 ft3/s on 
  basis of velocity-area study and slope-area measurement at gage heights 11.4 ft and 10.01 ft, respectively.  
  Minimum discharge observed, about 5 ft3/s, Dec. 22, 1909, gage height, 0.49 ft, present datum, result of 
  freezeup.  Several measurements of water temperature were made during the year.  Water-quality records for some 
  prior periods have been collected at this location.

COOPERATION.--Records were provided by the Virginia Department of Environmental Quality - Water Division.

EXTREMES FOR CURRENT YEAR.--Peak discharges equal to or greater than base discharge of 2,300 ft3/s and maximum (*):

                   Discharge   Gage height                          Discharge    Gage height

Date      Time      (ft3/s)        (ft)           Date      Time      (ft3/s)       (ft)

Jan. 19    1830       *4,310        *7.26        May 16     1300       2,320         5.28

Jan. 27    1830       2,810         6.03

  Minimum discharge, 56 ft3/s, Dec. 11, result of freezeup; minimum daily, 82 ft3/s, Oct. 3.

DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996

DAILY MEAN VALUES

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1        85       85      212      136      593      291      669      263      205      107      136      106

  2        84       91      179      145     e455      283      619      255      195      113      152      103

  3        82       95      157      218     e380      273      547      250      190      191      119      110

  4       101       92      142      322     e340      257      491      235      186      146      116      117

  5       416       88      132      259     e310      247      449      230      180      122      131      113

  6       621       86      126      230     e335      252      405     1040      172      115      168      186

  7       256      118      130     e125      350      270      378     1510      169      111      162      245

  8       180      244     e120     e100      377      265      351     1290      168      108      125      177

  9       147      203     e105     e130     1680      243      352      808      216      105      149      147

 10       131      157      e95     e170     1830      236      334      577      261      102      167      131

 11       120      143       85     e160     1480      240      315      456      201       99      128      130

 12       114      161      127     e150     1220      231      304      449      182       99      706      134

 13       110      187      120     e145      892      230      302      387      170       99     1450      119

 14       112      175      115      177      734      224      315      334      161      101      534      109

 15       115      174      121      242      669      231      298      336      151      112      313      106

 16       105      166      174      622      641      255      317     1860      146      154      250      116

 17       100      148      238      536      555      330      320     1440      141      120      230      133

 18        96      136      240     1220      505      469      309      852      136      106      192      121

 19        95      130      351     3540      456      588      308      608      148      106      167      109

 20        95      127      813     1960      436     1240      314      480      162      173      149      105

 21       114      124      571     1130      424      785      322      399      146      137      141      101

 22       104      120      373      806      418      578      296      345      134      118      133      100

 23        98      116      284      640      424      470      283      305      130      108      127       95

 24        93      116      232      584      397      410      271      279      125      103      128       91

 25        91      110      197      680      363      383      255      287      122       99      126       93

 26        88      107     e170      557      341      366      250      284      120      100      125       94

 27        86      103     e155     2120      326      330      248      265      116       97      162       93

 28        86      103     e140     1660      323      528      231      261      114       94      136      103

 29        85      164     e130     1050      313     1300      221      259      110       95      123      150

 30        83      274     e120      805      ---     1060      242      245      110       96      115      136

 31        83      ---     e115      712      ---      789      ---      222      ---      101      109      ---

TOTAL    4176     4143     6269    21331    17567    13654    10316    16811     4767     3537     6969     3673

MEAN      135      138      202      688      606      440      344      542      159      114      225      122

MAX       621      274      813     3540     1830     1300      669     1860      261      191     1450      245

MIN        82       85       85      100      310      224      221      222      110       94      109       91

CFSM      .55      .56      .82     2.79     2.45     1.78     1.39     2.20      .64      .46      .91      .50

IN.       .63      .62      .94     3.21     2.65     2.06     1.55     2.53      .72      .53     1.05      .55

  e Estimated.

KANAWHA RIVER BASIN

03167000  REED CREEK AT GRAHAMS FORGE, VA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1909 - 1996, BY WATER YEAR (WY)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN      143      163      244      358      460      511      421      320      210      157      141      117

MAX       626      606      790      911     1411     1406     1374      731      732      867      517      488

(WY)     1938     1930     1973     1936     1957     1955     1987     1958     1992     1916     1916     1989

MIN      45.3     50.7     59.9     61.2     63.5      120      100     91.4     74.6     63.5     60.5     51.4

(WY)     1942     1942     1942     1942     1934     1988     1942     1941     1941     1930     1930     1941

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1909 - 1996

ANNUAL TOTAL                       85321                     113213

ANNUAL MEAN                          234                        309                        270

HIGHEST ANNUAL MEAN                                                                        424              1972

LOWEST ANNUAL MEAN                                                                         118              1941

HIGHEST DAILY MEAN                  2420     Jan 15            3540     Jan 19           10600       Apr  5 1977

LOWEST DAILY MEAN                     69     Sep 12              82     Oct  3              22       Jan 30 1934

ANNUAL SEVEN-DAY MINIMUM              70    aSep  6              85     Oct 26              33       Feb 24 1942

INSTANTANEOUS PEAK FLOW                                        4310     Jan 19           17500       Jul 16 1916

INSTANTANEOUS PEAK STAGE                                          7.26  Jan 19             b11.40    Jul 16 1916

INSTANTANEOUS LOW FLOW                                          c56     Dec 11              d5.0     Dec 22 1909

ANNUAL RUNOFF (CFSM)                    .95                       1.25                       1.09

ANNUAL RUNOFF (INCHES)                12.85                      17.05                      14.83

10 PERCENT EXCEEDS                   433                        627                        541

50 PERCENT EXCEEDS                   165                        174                        160

90 PERCENT EXCEEDS                    85                        100                         74

  a Also Sept. 7, 1995.

  b Present datum, from floodmarks.

  c Result of freezeup.

  d Observed, result of freezeup.