South Platte Summary January 218 Compiled by Lee Cunning, P.E.
COLORADO DIVISION OF WATER RESOURCES, DIVISION 1 MONTH OF January 218 RESERVOIR FULL ALLOWABLE CAPACITY FIRST OF MONTH (ACRE (ACRE FEET) FEET) END OF MONTH (ACRE FEET) DISTRICT CHANGE IN STORAGE (ACRE FEET) % CHANGE IN STORAGE BASED ON FIRST OF MONTH STORAGE % OF CURRENT FULL ALLOWABLE CAPACITY % OF CURRENT FULL ALLOWABLE CAPACITY THIS MONTH LAST YEAR SURCHARGE (ACRE FEET) JULESBURG 22,666 16,453 16,42 64-411 -2% 71% 56% N STERLING 73,73 51,744 59,216 64 7,472 14% 8% 69% PREWITT 28,5 21,87 18,93 64-2,157-1% 66% 71% JACKSON 27,257 24,228 24,293 1 65 % 89% 88% EMPIRE 37,7 25,51 28,49 1 3,439 14% 76% 63% RIVERSIDE 63,113 47,5 43,878 1-3,127-7% 7% 71% BARR LAKE 32,152 26,854 26,763 2-91 % 83% 75% CHEESMAN 79,64 74,87 7,595 8-3,492-5% 89% 89% ELEVEN MILE 97,779 99,795 99,761 23-34 % 1% 1% 1,982 SPINNEY 53,651 41,263 4,846 23-417 -1% 76% 61% ANTERO 2,15 2,494 2,253 23-241 -1% 1% 73% 238 14 KERSEY and JULESBURG January 217 RIVER GAGES MEAN DAILY FLOW (CFS) KERSEY 848 JULESBURG 887 Mean Daily Flow (cfs) 12 1 8 6 4 2 66 532 THIS MONTH LAST YEAR KERSEY 73 JULESBURG 994 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 Day of Month Kersey Julesburg Kersey 191-213 Avg. Julesburg 192-213 Avg. KERSEY and JULESBURG January 218 14 MEAN FOR PERIOD OF RECORD* 12 KERSEY 66 JULESBURG 532 *Kersey 191-216 *Julesburg 192-216 Mean Daily Flow (cfs) 1 8 6 4 2 66 532 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 Day of Month Kersey Julesburg Kersey 191-213 Avg. Julesburg 192-213 Avg.
KERSEY and JULESBURG January 217 14 12 Mean Daily Flow (cfs) 1 8 6 4 66 532 2 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 Day of Month Kersey Julesburg Kersey 191-213 Avg. Julesburg 192-213 Avg.
KERSEY and JULESBURG January 218 14 12 Mean Daily Flow (cfs) 1 8 6 4 66 532 2 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 Day of Month Kersey Julesburg Kersey 191-213 Avg. Julesburg 192-213 Avg.
KERSEY and BALZAC January 218 14 12 Mean Daily Flow (cfs) 1 8 6 4 66 51 2 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 Day of Month Kersey Balzac Kersey 191-213 Avg. Balzac 1917-213 Avg.
South Platte River Monthly Stream Flow (cfs) Statistics South Platte River at Kersey South Platte River at Julesburg Historic* Historic* Month Mean Flow Max Flow Year Historic* Min Flow Year IY 218 Mean Monthly Flow Month Historic* Mean Flow Historic* Max Flow Year Historic* Min Flow Year IY 218 Mean Monthly Flow Oct 667 618 1984 66 1954 532 Oct 299 313 1984 4.2 193 134 Nov 747 365 1984 7 1934 764 Nov 335 29 1984 4.2 193 347 Dec 685 189 1961 91 1934 934 Dec 41 182 1984 13 22 383 Jan 652 216 1974 158 1935 848 Jan 512 251 197 21 23 887 Feb 671 36 1914 152 1935 Feb 578 322 193 29 25 Mar 688 347 1983 8 1935 Mar 512 129 191 15 194 Apr 842 181 1942 28 1955 Apr 514 144 1942 4. 194 May 1728 261 1973 29 1955 May 994 181 1973 12 1911 Jun 238 31 1921 52 1954 Jun 1426 38 1921 2. 191 Jul 675 126 1983 44 1955 Jul 311 126 1983. 193 Aug 51 969 1951 65 1934 Aug 178 892 1968. 193 Sep 539 142 1938 62 194 Sep 284 713 1938 2. 192 Oct 667 618 1984 66 1954 Oct 299 313 1984 4.2 193 *Period of record 192-216 *Period of record 192-216 South Platte River Monthly Stream Flow (cfs) Statistics
3 South Platte River at Kersey Irrigation Year 2 Flow (cfs) 1 Historic* Mean Flow Historic* Min Flow 217-218 Mean Flow 216-217 Mean Flow *191-216
16 South Platte River at Julesburg Irrigation Year 14 12 1 Flow (cfs) 8 6 4 2 Historic* Mean Flow Historic* Min Flow 217-218 Mean Flow 216-217 Mean Flow *191-216
Next three slides show Reservoir Storage above and below Kersey
25, Reservoir Storage below Kersey Selected Reservoirs* 228,817 23,129 23,366 3 212,212 218,36 2, 185,568 19,849 Storage (AF) 15, 11,521 1, 93,715 151,269 143,391 176,63 176,579 135,86 94,74 93,715 2 1 Mean Flow (cfs) 63,354 5, 216-17 Monthly Storage 217-18 Monthly Storage Kersey 216-17 Kersey 217-18 *Empire, Riverside, Jackson, Prewitt, North Sterling, & Julesburg
South Platte Reservoir Storage below Kersey* 275, 25, 252,966 225, 2, 175, 185,568 19,849 15, 125, 1, 75, 5, 93,715 151,269 25, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage *Empire, Riverside, Jackson, Prewitt, North Sterling, & Julesburg
South Platte Reservoir Storage above Kersey* 3, 275,14 25, 2, 193,44 15, 1, 5, 21,39 211,93 22,315 217-18 Monthly Storage 216-17 Monthly Storage Total Storage *Barr, Cobb, Fossil Crk, Halligan, Marshall, Milton, Union, Standley, Lower Latham, Boyd, Loveland, Windsor, Horse Crk, & Prospect
Individual Reservoir Storage Follows
January Reservoir Change in Storage IY217 versus IY218 35, 32,152 3, 26,763 27,257 28,5 25, 24,23 22,3 24,293 24,13 22,666 22,516 Storage (AF) 2, 15, 2,253 2,15 14,536 19,6 16,96 11,1 16,42 12,735 13,213 11,99 19,279 19,385 18,93 2,11 12,122 12,279 13,652 11,971 9,517 9,517 6,428 6,428 1,52 11,518 7,71 5,9 9,458 5,834 5,834 8,28 6,36 7,448 4,587 19,795 12,739 12,736 17,538 18,747 1, 5, 6,428 6,212 6,3 END OF MONTH 218 END OF MONTH 217 FULL ALLOWABLE CAPACITY
55, 5, January Reservoir Change in Storage IY217 versus IY218 491,41 539,8 45, 424,252 4, 35, Storage (AF) 3, 25, 243,318 254,36 227,243 2, 15, 1, 5, 58,969 112,2 75,17 7,595 79,64 7,156 99,761 97,779 99,418 4,846 53,651 32,619 92,947 152, 121,389 59,216 73,73 5,889 28,49 37,7 23,739 43,878 63,113 45,12 41,917 42,38 32,286 35,27 52,438 28,185 END OF MONTH 218 END OF MONTH 217 FULL ALLOWABLE CAPACITY
Julesburg Reservoir (District 64 - Agricultural) 24, 22,666 2, 16, 16,314 16,453 16,453 16,42 12, 8, 4, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
North Sterling Reservoir (District 64 - Agricultural) 8, 73,73 7, 6, 59,216 5, 4, 3, 2, 3,96 51,744 1, 14,65 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Empire Reservoir (District 1 - Agricultural) 4, 37,7 35, 3, 25, 2, 15, 1, 22,51 25,769 25,51 28,49 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Prewitt Reservoir (District 64 - Agricultural) 3, 28,5 25, 2, 21,87 18,93 15, 1, 8,191 12,67 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Jackson Reservoir (District 1 - Agricultural) 3, 27,257 25, 24,228 24,228 24,293 2, 19,22 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Riverside Reservoir (District 1 - Agricultural) 7, 63,113 6, 5, 4, 3, 2, 12,857 41,846 47,5 43,878 1, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Barr Reservoir (District 2 - Agricultural) 35, 32,152 3, 25, 28,162 27,871 26,854 26,763 2, 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Cobb Reservoir (District 3, Poudre River - Agricultural) 25, 22,3 2, 19,35 19,2 19,2 19,6 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Fossil Creek Reservoir (District 3, Poudre River - Agricultural) 12, 11,1 1, 9,517 9,517 9,517 9,517 8, 6, 4, 2, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Halligan Reservoir (District 3, Poudre River - Agricultural) 7, 6,428 6, 6,428 6,428 5, 5,5 4, 3, 2, 1, 47 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Marshall Lake (District 6, Boulder Creek - Agricultural) 12, 11,518 1, 8, 6, 4, 5,364 6,1 6,621 7,71 2, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Loveland Greeley Reservoir (District 4, Big Thompson River - Agricultural) 14, 12,736 12, 1, 8, 6, 8,393 9,195 8,721 8,28 4, 2, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Milton Reservoir (District 2 - Agricultural) 24, 22,516 2, 16, 12, 19,719 19,431 19,143 19,279 8, 4, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Union Reservoir (District 5, St. Vrain Creek - Agricultural) 14, 12,739 12, 12,746 1, 8, 6, 11,353 11,193 12,122 4, 2, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Standley Lake (Agricultural) 45, 42,38 4, 35, 3, 25, 2, 4,135 42,34 42,34 41,917 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Lower Latham Reservoir (District 2 - Agricultural) 7, 6, 6,212 5,929 5,778 5,834 5,834 5, 4, 3, 2, 1, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Boyd Lake (District 4, Big Thompson River - Agricultural) 5, 52,438 4, 3, 2, 1, 31,855 31,82 33,638 35,27 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Windsor Reservoir (District 3, Poudre River - Agricultural) 18, 17,538 15, 12, 12,275 12,279 9, 6, 1,515 11,275 3, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Prospect Reservoir (District 1 - Agricultural) 7, 6,3 6, 5, 4, 3, 2, 1, 1,249 1,99 1,863 4,587 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Horse Creek Reservoir (District 1 - Agricultural) 2, 18,747 16, 12, 8, 4, 8,582 11,971 875 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Dillon Reservoir (District 1 - Municipal) 275, 25, 225, 2, 175, 254,36 247,776 246,312 246,312 243,318 15, 125, 1, 75, 5, 25, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Antero Reservoir (District 23 - Municipal) 21, 2,15 2,736 2,494 2,494 2,253 18, 15, 12, 9, 6, 3, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Cheesman Reservoir (District 8 - Municipal) 8, 79,64 7, 73,785 74,87 74,87 7,595 6, 5, 4, 3, 2, 1, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Spinney Mountain Reservoir (District 23 - Municipal) 55, 53,651 5, 45, 4, 35, 39,957 41,263 41,263 4,846 3, 25, 2, 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Eleven Mile Reservoir (District 23 - Municipal) 11, 1, 9, 97,779 99,418 99,795 99,795 99,761 8, 7, 6, 5, 4, 3, 2, 1, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
Lake Granby 55, 539,8 5, 45, 52,4 52,9 511,83 491,41 4, 35, 3, 25, 2, 15, 1, 5, 217-18 Monthly Storage 216-17 Monthly Storage Total Storage
All data is collected by the personnel of Division 1 and is subject to revision.