DWR_2669029

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 1992
• Document Type - Publications and Reports: Streamflow Report

2

PLATTE RIVER BASIN

06694920 SOUTH PLATTE RIVER ABOVE SPINNEY MOUNTAIN RESERVOIR, CO

LOCATION.--Lat 38°59'10", long 105°40'52".

DRAINAGE AREA.--N/A

GAGE.--Graphic water-stage recorder with satellite telemetry in a wooden shelter at a 25' Parshall flume. Station and
satellite telemetry are owned and maintained by the City of Aurora.

REMARKS.--Primary record is from satellite data base. Chart record was used for the following days: May 11; Jun. 11,
18; Jul. 10-14, 17-18, 28, 30-31; Aug. 2-3, 18-20, 27; Sep. 30. Discharge was estimated for the winter period--Nov. 3,
1991 to Apr. 20, 1992--when the flume was frozen. Discharges for the winter period were based on City of Aurora
estimates of flow into Spinney Res. These figures were based on reservoir readings taken to the nearest 0.1 ft, and show
step-wise rather than continuous changes. The record is good for open water conditions. Winter period estimates are
fair on a long term average, and poor on a daily basis. Record is developed by Robert E. Cooper.

RATING TABLE.--PLASPICO01 USED FROM 01-OCT-1991 TO 30-SEP-1992

DISCHARGE, IN CFS, WATER YEAR OCTOBER 1991 TO SEPTEMBER 1992
MEAN VALUES

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

1 32 18 20 25 10 10 70 44 196 198 123 79
2 31 23 20 25 10 10 100 49 177 231 117 77
3 28 20 20 25 10 10 120 53 161 231 108 73
4 25 20 20 25 10 10 120 54 159 190 86 68
5 24 20 20 25 10 15 120 56 155 208 79 63
6 25 20 20 20 10 15 140 62 156 188 79 60
7 26 20 20 20 10 15 160 69 164 216 79 52
8 25 40 20 20 10 15 160 83 161 244 75 45
9 26 45 20 20 10 20 160 106 161 292 75 41
10 25 45 20 20 10 20 160 117 184 269 72 39
11 25 45 20 20 10 20 150 105 225 258 99 38
12 25 45 20 20 10 20 140 100 261 232 92 37
13 24 30 20 20 10 20 130 100 270 232 86 35
14 24 25 20 20 10 20 120 93 270 232 78 34
15 23 25 20 20 10 20 85 93 248 208 78 38
16 23 25 20 20 10 25 81 96 225 205 74 38
17 22 25 20 20 10 25 74 106 177 199 88 37
18 22 25 25 20 10 25 66 123 164 187 92 37
19 21 25 25 20 10 25 60 137 169 170 79 41
20 22 25 25 15 10 25 53 151 191 171 72 46
21 22 25 30 15 10 30 44 200 209 175 64 43
22 22 25 30 15 10 30 40 233 208 175 64 40
23 21 20 30 15 10 30 40 222 234 167 62 37
24 26 20 30 15 10 35 37 219 285 168 137 34
25 31 20 30 15 10 35 34 214 317 176 287 32
26 30 20 30 15 10 40 35 233 340 228 227 34
27 28 20 30 15 10 40 33 242 333 213 195 34
28 27 20 30 15 10 45 34 237 279 193 112 33
29 19 20 30 15 10 45 36 218 244 160 83 34
30 17 20 30 15 --- 60 41 216 208 148 74 36
31 21 --- 30 15 --- 70 --- 213 --- 139 77 ---

TOTAL 762 776 745 585 290 825 2643 4244 6531 6303 3113 1335
MEAN 24.6 25.9 24.0 18.9 10.0 26.6 88.1 137 218 203 100 44.5
AC-FT 1510 1540 1480 1160 575 1640 5240 8420 12950 12500 6170 2650
MAX 32 45 30 25 10 70 160 242 340 292 287 79
MIN 17 18 20 15 10 10 33 44 155 139 62 32

CAL YR 1991 TOTAL 25839 MEAN 70.8 MAX 378 MIN 10 AC-FT 51250
WTR YR 1992 TOTAL 28152 MEAN 76.9 MAX 340 MIN 10 AC-FT 55840

MAX DISCH 357 CFS AT 1630 26-JUN-1992 GH 2.29 FT. SHIFT 0.00 FT. MAX GH 2.29 FT. AT 1630
26-JUN-1992