CONNECTICUT RIVER BASIN
01155910 WEST RIVER BELOW TOWNSHEND DAM NEAR TOWNSHEND, VT
LOCATION.--Lat 43°03'04", long 72°42'02", Windham County, Hydrologic Unit 01080107, on left bank, 150 ft below
Townshend Dam, 1.9 mi northwest of Townshend, 2.2 mi upstream from Mills Brook, and 18.2 mi upstream from mouth.
DRAINAGE AREA.--282 mi².
PERIOD OF RECORD.--Discharge records: October 1994 to current year. September 1919 to September 1923, October 1928 to
September 1989, at site 5.5 mi downstream (station 01156000).
GAGE.--Water-stage recorder and crest stage gage. Elevation of gage is 463 ft above sea level, from topographic map.
REMARKS.--Records good except those for estimated daily discharges, which are fair. Flow regulated since 1961 by
Ball Mountain Reservoir and Townshend Reservoir (Reservoirs in Connecticut River Basin). These reservoirs have a
combined usable capacity of about 3.84 billion ft³.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 5,870 ft³/s, April 29, gage height, 8.11 ft; minimum daily discharge,
24 ft³/s, September 26.
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
1 309 448 439 875 345 1870 2350 2520 249 41 28 38
2 317 448 1160 950 335 1430 2260 2980 278 39 28 37
3 319 445 3320 1070 296 1910 1720 2470 225 e47 27 35
4 277 444 3790 1040 214 2020 1340 4320 197 e200 28 33
5 159 443 3660 1030 188 1070 1620 2930 186 e176 43 32
6 150 441 3060 1020 257 917 2000 1890 167 e99 42 31
7 134 441 2190 1010 229 821 2940 2330 155 e60 34 33
8 77 442 1380 1040 227 724 4410 1490 139 43 31 36
9 214 572 877 1040 217 585 3920 1150 123 58 29 35
10 267 2220 665 970 211 513 2530 1130 108 80 28 33
11 250 3690 546 1060 186 523 1310 1030 101 59 27 35
12 254 3720 538 1020 160 509 1070 862 94 47 27 125
13 253 3410 573 937 244 448 1550 814 106 42 32 76
14 250 2390 595 788 172 357 2100 792 105 40 56 54
15 247 467 607 877 192 373 2180 479 81 41 40 46
16 197 307 e512 929 183 367 1960 572 74 43 35 41
17 276 313 e507 894 161 353 2530 553 68 42 e35 38
18 284 316 e550 859 197 373 2430 490 73 42 45 37
19 260 335 e622 821 261 373 1840 458 98 41 35 36
20 291 355 692 623 394 352 2150 816 85 38 31 36
21 397 335 746 663 624 310 2920 629 79 37 61 38
22 420 306 764 373 1150 313 2290 591 75 37 127 36
23 419 304 727 346 1330 315 2500 553 71 35 77 35
24 421 295 772 319 1870 304 2220 433 68 34 56 35
25 419 288 880 331 2150 353 1820 408 85 33 44 27
26 418 367 882 360 1160 840 2020 376 76 32 40 24
27 438 399 880 327 907 1150 2250 321 65 32 39 622
28 449 421 878 331 1760 1270 4150 268 59 32 38 621
29 448 421 875 396 --- 1530 5340 318 47 30 43 100
30 449 419 857 377 --- 1780 3770 249 42 29 46 89
31 449 --- 882 374 --- 2090 --- 240 --- 28 40 ---
TOTAL 9512 25202 35426 23050 15620 26143 73490 34462 3379 1637 1292 2494
MEAN 307 840 1143 744 558 843 2450 1112 113 52.8 41.7 83.1
MAX 449 3720 3790 1070 2150 2090 5340 4320 278 200 127 622
MIN 77 288 439 319 160 304 1070 240 42 28 27 24
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 1997, BY WATER YEAR (WY)
MEAN 459 750 759 865 544 818 1842 966 180 192 84.8 78.5
MAX 892 1134 1143 1044 832 1039 2602 1517 303 471 122 117
(WY) 1996 1996 1997 1996 1996 1995 1996 1996 1996 1996 1995 1996
MIN 178 277 246 744 234 571 474 269 113 51.7 41.7 35.4
(WY) 1995 1995 1996 1997 1995 1996 1995 1995 1997 1995 1997 1995
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1995 - 1997
ANNUAL TOTAL 299389 251707
ANNUAL MEAN 818 690 628
HIGHEST ANNUAL MEAN 816 1996
LOWEST ANNUAL MEAN 378 1995
HIGHEST DAILY MEAN 6390 Apr 21 5340 Apr 29 6390 Apr 21 1996
LOWEST DAILY MEAN 31 Sep 13 24 Sep 26 e 2.3 Sep 9 1995
ANNUAL SEVEN-DAY MINIMUM 32 Sep 7 28 Jul 29 6.4 Sep 8 1995
INSTANTANEOUS PEAK FLOW 5870 Apr 29 8050 Apr 24 1996
INSTANTANEOUS PEAK STAGE 8.11 Apr 29 8.89 Apr 24 1996
10 PERCENT EXCEEDS 2440 2090 1800
50 PERCENT EXCEEDS 357 352 266
90 PERCENT EXCEEDS 70 36 38
e Estimated.
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