DWR_2669027

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 1991
• Document Type - Publications and Reports: Streamflow Report

36

PLATTE RIVER BASIN

06752000 CACHE LA POUDRE RIVER AT MOUTH OF CANYON, NEAR FORT COLLINS, CO

LOCATION.--Lat 40°39'52", long 105°13'26", in NW¼ sec.15, T.8 N., R.70 W., Larimer County, Hydrologic
Unit 10190007, on 1eft bank at mouth of canyon, 0.5 mi downstream from headgate of Poudre Valley Canal, 1.2 mi
upstream from Lewstone Creek, and 9.3 mi northwest of courthouse in Fort Collins.

DRAINAGE AREA.--1,056 mi2.

GAGE.--F-type water-stage recorder. Elevation of gage is 5,220 ft above National Geodetic Vertical Datum of 1929, from
topographic map.

REMARKS.--Record is complete and reliable except for Dec. 3, 1990 to Mar. 8, 1991 when the station was closed for the
winter. Stage discharge relation was affected by ice on Dec. 1-2, 1990 and Mar. 9-14 1991. Records good except
for periods of no gage-height and ice affect, which is fair. Natural flow of stream affected by transbasin and
transmountain diversions, diversions upstream from station for irrigation, diversions for municipal use. Station
maintained and records developed by George Sievers.

RATING TABLE.--CLAFTCCO09 USED FROM 01-OCT-1990 TO 30-SEP-1991

DISCHARGE, IN CFS, WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991
MEAN VALUES

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

1 69 47 46 6.0 21 17 25 13 1650 885 488 182
2 64 48 37 24 21 22 29 11 3740 768 517 178
3 58 50 25 26 20 24 32 13 2700 660 495 176
4 55 33 25 31 19 31 28 18 1770 652 533 171
5 59 39 28 33 21 32 23 26 1880 654 483 168
6 58 47 31 27 21 30 26 24 1860 634 493 158
7 61 31 27 26 21 26 28 19 1900 617 564 174
8 76 25 23 23 21 18 31 22 1790 607 539 195
9 76 42 22 19 20 19 28 18 1740 623 476 199
10 70 50 220 20 21 23 20 21 1670 641 440 193
11 69 47 179 20 20 28 22 84 1720 606 430 189
12 72 38 134 18 20 29 21 161 1900 520 435 184
13 61 35 31 19 20 19 15 183 1790 546 462 162
14 61 36 28 20 19 22 10 284 1710 497 491 126
15 60 35 12 19 21 21 13 317 1820 434 455 114
16 61 43 8.0 18 19 20 7.8 281 1810 400 482 118
17 63 36 10 20 24 18 12 212 1500 381 492 110
18 68 35 25 17 22 16 18 237 1370 384 480 89
19 54 34 31 18 17 24 22 477 1330 402 537 82
20 71 33 23 17 23 26 16 775 1400 399 530 76
21 64 30 20 18 23 23 17 676 1410 445 485 64
22 50 7.4 15 20 23 25 19 716 1430 457 447 60
23 54 5.2 16 18 19 24 14 1030 1310 578 350 84
24 57 26 24 10 15 22 15 913 1310 512 307 72
25 46 34 25 15 14 28 15 749 1290 532 287 60
26 41 104 27 17 13 31 16 1170 1180 555 277 56
27 40 118 18 17 11 35 18 1430 995 520 277 55
28 43 8.8 14 19 17 29 16 1500 977 475 305 55
29 40 7.8 7.0 20 --- 25 14 1330 986 494 284 54
30 39 41 7.0 20 --- 26 13 1280 986 461 243 64
31 43 --- 8.0 20 --- 23 --- 1080 --- 443 194 ---

TOTAL 1803 1166.2 1146.0 615.0 546 756 583.8 15070 48924 16782 13278 3668
MEAN 58.2 38.9 37.0 19.8 19.5 24.4 19.5 486 1631 541 428 122
AC-FT 3580 2310 2270 1220 1080 1500 1160 29890 97040 33290 26340 7280
MAX 76 118 220 33 24 35 32 1500 3740 885 564 199
MIN 39 5.2 7.0 6.0 11 16 7.8 11 977 381 194 54

CAL YR 1990 TOTAL 108256.6 MEAN 297 MAX 2210 MIN 5.2 AC-FT 214700
WTR YR 1991 TOTAL 104338.0 MEAN 286 MAX 3740 MIN 5.2 AC-FT 207000

MAX DISCH 4522 CFS AT 1345 02-JUN-1991 GH 6.52 FT. SHIFT 0.00 FT. MAX GH 6.52 FT. AT 1345
02-JUN-1991