Chehalis and Humptulips River Basins
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61 124° 123°30' 123° 122°30' JEFFERSON 47° EXPLANATION 30' GRAYS HARBOR REAL-TIME SURFACE-WATER SITE LAKE OR RESERVOIR SITE KITSAP KING B ig C 12035380 051015 20 MILES rk k r o r F o F 12035400 051525 1020 30 KILOMETERS t s t e s 12036000 W a E MASON 12039005 k r r ork e o v r F F i e r v R k i e US r l k R ive o r 101 d R o s F t d F p s i i t e M l s tu a t W s p E a m k , E r r e u e r o e H v h F i C c r R o e v t o m i um s l ia n l e R u h y a a PIERCE W q k W u o 12035000 h 12037400 p q s H o i o s l t US 47° Hoquiam W C a 101 Montesano S River Grays Aberdeen Chehalis SR US 12035002 THURSTON Harbor 105 101 12031000 I 12035100 5 Grand Tenino US 12 hMound Bucoda uck Che alis mch 12026150 u R GRAYS HARBOR k iver o o 12025700 PACIFIC 12027500 Ri k 12026400 v S e r Centralia k North For 12025100 , ork Chehalis r F e h v t 12021800 Ne i 12024400 ou wa R S ukum SR r r, 12020000 e e 508 iv v r 12025000 N i R e ewau R v I kum i 5 SR R 6 s Pe Ell s 12024000 i i Willapa l l a WASHINGTON a 46° Bay h eh 30' he h C C 12020800 k r o F th ou LEWIS S WAHKIAKUM COWLITZ PACIFIC OCEAN Figure 10. Location of surface-water stations in the Chehalis and Humptulips River Basins. 62 Wynoochee EXPLANATION Lake Storage Real-time surface-water station West Fork since 1972 Lake orreservoir site Humptulips River 12035380 Wynoochee Dam RM 51.8 12039005 Station number Powerhouse RM East Fork 12035400 RM 28.1 River mile 28.1 Humptulips River RM 51.3 Big Creek Stream—Arrow shows direction of flow 12039005 RM 49.3 Tunnel or pipe—Arrow shows direction of flow RM 22.9 12036000 RM 40.6 RM 28.3 Schafer Creek Anderson City of RM 16.8 Creek East Fork Aberdeen Middle Fork RM diversion 8.1 West Fork Fork 12037400 Middle RM 5.9 East Fork River HUMPTULIPS RIVER West Hoquiam River Fork 12035000 Wynoochee 12035100 RM 2.3 Creek 12031000 Wishkah River Satsop River GRAYS CHEHALISRM 13.2 RIVER Cloquallum RM 33.3 HARBOR RM RM 12035002 RM RM 0.15 13.0 RM 19.5 20.2 25.2 12027500 12026400 12026150 Skookumchuck 12025700 RM 59.9 RM RM 6.4 RM RM 20.7 3.8 Reservoir RM 28.8 6.9 RM RM 66.9 Skookumchuck21.9 Storage River began 1971 PACIFIC OCEAN Creek Hanaford Centralia Steam Electric Project diversion Diversion forcities of Centralia and Chehalis CHEHALIS RIVER 12024400 12025100 North Fork RM 7.7 RM 74.3 Newaukum River RM Newaukum South Fork 75.2 River RM Newaukum River 12025000 10.9 12024000 RM 4.1 RM 22.8 12021800 RM 86.0 12020800 RM South Fork RM 16.2 88.0 Chehalis River 12020000 RM 101.8 Figure 11. Schematic diagram showing surface-water stations in the Chehalis and Humptulips River Basins. CHEHALIS RIVER BASIN 63 12020000 CHEHALIS RIVER NEAR DOTY, WA ° ° 1⁄ 1⁄ LOCATION.--Lat 46 37'03", long 123 16'35", in NE 4NW 4 sec.14, T.13 N., R.5 W., Lewis County, Hydrologic Unit 17100103, on right bank 1.3 mi south of Doty, 1.6 mi upstream from Elk Creek, 3.4 mi north of Pe Ell, and at mile 101.8. DRAINAGE AREA.--113 mi2. PERIOD OF RECORD.--October 1939 to current year. REVISED RECORDS.--WSP 1316: 1943(M). WSP 1446: 1946(M). WDR-WA-72-1: 1945(M). GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 301.1 ft above NGVD of 1929 (river-profile survey). Prior to Oct. 1, 1961, nonrecording gage and crest-stage gage at site 50 ft upstream at datum 1 ft higher. Oct 1, 1961 to Sept. 15, 1995, water-stage recorder at site 150 ft upstream at datum 1 ft higher. Prior to Feb. 24, 1999, at same site at datum 1 ft higher. REMARKS.--Records good except for estimated daily discharges, which are fair. No regulation or diversion upstream from station. Chemical analyses July 1959 to September 1970, sedment records October 1961 to December 1964 (partial-record station). AVERAGE DISCHARGE.--66 years (water years 1940-2005), 571 ft3/s, 68.65 in/yr, 413,600 acre-ft/yr. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 28,900 ft3/s, Feb. 8, 1996, gage height, 20.37 ft, from rating curve extended above 8,000 ft3/s, on basis of slope-area measurement at gage height 18.36 ft; minimum discharge, 16 ft3/s, Aug. 31, Sept. 3, 4, 7, 8, 1992. EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 6,800 ft3/s and maximum (*): Discharge Gage height Discharge Gage height Date Time (ft3/s) (ft) Date Time (ft3/s) (ft) Dec 11 0230 *9,270 *11.35 Jan 18 0315 8,610 10.88 Minimum discharge, 21 ft3/s, Sept. 25-27, gage height, 0.90 ft. DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 99 460 279 237 281 208 1,560 246 241 91 39 28 2 94 1,870 239 214 261 179 1,440 328 218 89 38 26 3 87 1,460 218 194 244 169 1,290 273 205 86 37 25 4 85 934 222 180 269 153 1,130 261 188 79 35 25 5 81 698 230 166 321 144 932 239 181 77 34 25 6 144 546 258 167 345 136 783 222 187 88 33 25 7 112 438 640 272 381 130 725 207 172 88 33 24 8 127 365 2,590 351 343 127 670 207 158 92 33 23 9 361 322 1,930 321 318 121 573 287 150 171 32 23 10 489 281 3,750 290 295 117 504 487 144 122 32 26 11 323 270 5,840 263 279 112 621 497 152 113 32 39 12 253 249 2,300 285 275 109 714 411 143 111 32 32 13 223 228 1,390 334 275 105 933 346 136 100 31 27 14 196 211 1,240 307 261 103 927 307 129 91 30 26 15 179 209 1,120 288 241 100 829 304 123 82 29 26 16 168 212 863 304 227 116 1,490 302 118 78 28 26 17 759 203 679 1,460 213 142 1,480 280 149 75 30 25 18 793 301 554 6,900 204 116 1,110 616 135 68 32 25 19 910 338 471 3,300 194 120 873 877 139 62 30 24 20 766 290 400 1,840 182 618 710 920 121 59 29 24 21 578 258 351 1,320 173 723 587 746 110 57 28 23 22 474 e250 314 996 164 534 498 694 109 56 28 22 23 417 e235 276 792 155 429 451 606 108 55 28 22 24 371 270 248 650 150 356 404 517 98 52 27 22 25 348 1,760 254 549 145 302 393 441 95 49 27 21 26 413 936 372 477 139 1,420 348 382 93 47 26 21 27 365 608 302 428 133 3,850 316 333 114 46 26 21 28 e330 453 270 385 141 2,090 290 295 124 44 26 22 29 e305 362 248 358 --- 2,540 269 268 106 42 29 22 30 416 323 231 325 --- 2,230 257 249 97 41 37 72 31 454 --- 217 304 --- 1,540 --- 231 --- 40 32 --- TOTAL 10,720 15,340 28,296 24,257 6,609 19,139 23,107 12,379 4,243 2,351 963 792 MEAN 346 511 913 782 236 617 770 399 141 75.8 31.1 26.4 MAX 910 1,870 5,840 6,900 381 3,850 1,560 920 241 171 39 72 MIN 81 203 217 166 133 100 257 207 93 40 26 21 AC-FT 21,260 30,430 56,130 48,110 13,110 37,960 45,830 24,550 8,420 4,660 1,910 1,570 CFSM 3.06 4.53 8.08 6.92 2.09 5.46 6.82 3.53 1.25 0.67 0.27 0.23 IN. 3.53 5.05 9.32 7.99 2.18 6.30 7.61 4.08 1.40 0.77 0.32 0.26 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2005, BY WATER YEAR (WY) MEAN 278 905 1,257 1,221 1,146 889 575 274 145 70.3 46.7 77.7 MAX 1,121 2,131 2,486 2,888 2,940 1,870 1,285 700 390 183 124 357 (WY) (1998) (1956) (1995) (1953) (1999) (1956) (1996) (1948) (1968) (1983) (1968) (1959) MIN 20.5 57.6 217 176 236 216 207 125 62.8 33.9 23.3 22.0 (WY) (1988) (1994) (1977) (1977) (2005) (1992) (1941) (1994) (1992) (1951) (2003) (1998) 64 CHEHALIS RIVER BASIN 12020000 CHEHALIS RIVER NEAR DOTY, WA—Continued SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1940 - 2005 ANNUAL TOTAL 163,237 148,196 ANNUAL MEAN 446 406 571 HIGHEST ANNUAL MEAN 911 1956 LOWEST ANNUAL MEAN 253 2001 HIGHEST DAILY MEAN 5,840 Dec 11 6,900 Jan 18 19,200 Feb 8, 1996 LOWEST DAILY MEAN 34 Jul 29 21 Sep 25 16 Sep 3, 1992 ANNUAL SEVEN-DAY MINIMUM 35 Jul 25 22 Sep 22 17 Aug 29, 1992 ANNUAL RUNOFF (AC-FT) 323,800 293,900 413,600 ANNUAL RUNOFF (CFSM) 3.95 3.59 5.05 ANNUAL RUNOFF (INCHES) 53.74 48.79 68.65 10 PERCENT EXCEEDS 935 914 1,450 50 PERCENT EXCEEDS 270 231 258 90 PERCENT EXCEEDS 59 29 36 e Estimated CHEHALIS RIVER BASIN 65 12020800 SOUTH FORK CHEHALIS RIVER NEAR WILDWOOD, WA ° ° 1⁄ 1⁄ LOCATION.--Lat 46 26'42", long 123 04'57", in NW 4 NE 4 sec.17, T.11 N., R.3 W., Lewis County, Hydrologic Unit 17100103, on left bank at Wildwood Road bridge, 0.4 mi downstream from Black Creek, 1.2 mi southeast of Wildwood, and at mile 16.2.