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.