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Water Resources Data - Ohio, Water Year 97, Vol. 1 | Great Miami River Basin

                              03262700 GREAT MIAMI RIVER AT TROY, OHIO

LOCATION.--Lat 40002'25", long 84011'52", Miami County, Hydrologic Unit 05080001, 400 ft downstream from B & O Railroad 
bridge, 1,300 ft downstream from bridge on State Highway 55 at Troy, 1.2 mi upstream from small left bank tributary, 
2.3 mi downstream from Spring Creek, and at mile 105.
DRAINAGE AREA.--926 mi2.
PERIOD OF RECORD.--Occasional low-flow measurements, water years 1961, 1962 (published as Miami River at Troy). 
October 1962 to current year.
GAGE.--Water-stage recorder. Datum of gage is 810.67 ft above sea level.
REMARKS.--Records good except for periods of estimated record, which are fair. Flood flow regulated by retarding 
basin on Loramie Creek, 18 mi upstream. Low and medium flow slightly regulated by Indian Lake; capacity,        
45,900 acre-ft, 54 mi upstream. Water supply for city of Troy is pumped from wells adjacent to the Great Miami 
River upstream from the station. The pumpage averaged 8.6 ft3/s in 1997 and is returned as sewage 1 mi downstream 
from the station. Water-quality and sediment data collected at this site.
COOPERATION.--Gage-height tapes and 8 discharge measurements furnished by Miami Conservancy District.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of June 11, 1958, reached a stage of 16.4 ft; discharge, 21,000 ft3/s.

                     DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997                   
                                                DAILY MEAN VALUES                                                
 
 DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
   1       203      125     3900     1030      784     3370     1480      360    11000      774      146      109
   2       154      117     4200      891      646     6040     1080      413    13100     1440      140      109
   3       123      103     2490      823      620     4660      865     1330    11400     2290      135      107
   4       123       97     1590      787     2730     2920      767     2360     7560     1990      141      103
   5       135       87     1110     1590     7820     3160      767     1700     4120     1070      167      119
 
   6       116       80      840     1890     4910     6180      839     1210     2770      662      161       93
   7       111       83      730     1250     3060     3940      763     1030     1980      483      136       86
   8       112      117      672      883     2130     2700      707      841     1430      399      127       81
   9       109      172      605      757     1520     2060      623      809     1010      385      113      149
  10       114      196      516      691     1140     2950      606      791      811      382      108      205
 
  11       110      162      700     e360      852     2420      513      708      693      411      106      209
  12       108      145     5120     e340      726     1720      579      541      620      303       96      132
  13       106      129     6650     e330      623     1280      936      433      903      249      119      123
  14        98      116     4360     e320      626     2770      874      466     1100      264      111      107
  15        96      108     2960     e350      606     3150      699      440      755      223      115      101
 
  16        98      104    e2400     e400      506     1980      635      438      598      192      124       99
  17        94      114    e7000     e350      430     1390      591      446      502      190      252       92
  18       122      117     8720     e320      452     1180      626      336      653      173      522       90
  19       115      115     5290     e310      530     1730      515      443     1730      139      459       87
  20       129      112     3040     e300      750     1360      458      489     1200      153      367      104
 
  21       119      110     2060      377     1220     1100      449      514      729      203      318       91
  22       120      112     1510     1280     2450      941      426      412      583      136      329       88
  23       114      114     1210     3630     1740      850      423      379      561      202      284       98
  24       107      121     7280     2680     1120      732      448      342      433      302      240       88
  25       106      224     5630     1910      865      646      426      349      368      303      192       78
 
  26       102     3350     3100     1180      786      628      386      662      349      230      177       89
  27       101     2610     2060     1100     4400      622      385      829      474      273      177       88
  28        98     1400     1730     3070     4940      578      394      530      439      218      155       90
  29        94      817     1950     1950      ---     2850      427      414      349      225      124       86
  30       111      856     1600     1310      ---     2300      378      370      308      184      133       78
  31       110      ---     1240      965      ---     1870      ---     1330      ---      168      122      ---
 
 TOTAL    3558    12113    92263    33424    48982    70077    19065    21715    68528    14616     5896     3179
 MEAN      115      404     2976     1078     1749     2261      636      700     2284      471      190      106
 MAX       203     3350     8720     3630     7820     6180     1480     2360    13100     2290      522      209
 MIN        94       80      516      300      430      578      378      336      308      136       96       78
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1963 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN      249      666     1057      925     1242     1675     1528      976      766      642      333      177
 MAX      2268     3824     3949     3069     3403     4005     4032     3294     2858     3458     2246      671
 (WY)     1987     1973     1991     1974     1975     1963     1964     1996     1981     1993     1995     1972
 MIN      24.9     49.4     49.2     34.6     58.7      308      270      140     65.9     65.2     41.0     24.1
 (WY)     1964     1964     1977     1977     1964     1981     1971     1988     1988     1965     1965     1963
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1963 - 1997
 
 ANNUAL TOTAL                      502105                     393416                                             
 ANNUAL MEAN                         1372                       1078                        851                  
 HIGHEST ANNUAL MEAN                                                                       1662              1973
 LOWEST ANNUAL MEAN                                                                         300              1988
 HIGHEST DAILY MEAN                 13400     Jan 19           13100     Jun  2           18900       Aug  9 1995
 LOWEST DAILY MEAN                     80     Nov  6              78     Sep 25               4.3     Jul 17 1977
 ANNUAL SEVEN-DAY MINIMUM              98     Nov  2              85     Sep 24              19       Oct  6 1963
 INSTANTANEOUS PEAK FLOW                                       13700     Jun  1           21700       Aug  8 1995
 INSTANTANEOUS PEAK STAGE                                         12.58  Jun  1              16.02    Aug  8 1995
 INSTANTANEOUS LOW FLOW                                           78     Sep 25               4.3     Jul 17 1977
 10 PERCENT EXCEEDS                  3750                       2800                       2200                  
 50 PERCENT EXCEEDS                   542                        458                        308                  
 90 PERCENT EXCEEDS                   111                        106                         71                  

e Estimated.