DWR_2669029

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

6

PLATTE RIVER BASIN

06706000 NORTH FORK SOUTH PLATTE RIVER BELOW GENEVA CREEK, AT GRANT, CO

Location.--Lat 39°27'26", long 105°39'29" in NW¼ sec.10, T.7 S., R.74 W., Park County, Hydrologic Unit 10190002, on left
bank at Grant, 1,550 ft downstream from Geneva Creek, and 1.3 mi downstream from east portal of Harold D. Roberts
tunnel.

DRAINAGE AREA.--127 mi2.

GAGE.--Water-stage recorder with satellite telemetry in a wooden shelter at a concrete control section. Datum of gage is
8,560.81 ft above National Geodetic Vertical Datum of 1929. Station is owned and maintained by the Denver Water
Dept. Satellite telemetry is maintained by the U.S. Army Corps of Engineers and the USGS.

REMARKS.--The primary record is taken from the chart recorder. Hourly satellite data was used Apr. 28-May 29; Sep. 16-
18, 1992, when chart clock malfunctioned. Record is complete. The record is reliable, except for Oct. 29-30,
1992, when gage-height ice affected. Discharge for the two days of ice-affect estimated from adjacent good
record, and discharges from Roberts Tunnel. Record is good. Record is developed by Robert E. Cooper.

RATING TABLE.--PLAGRACO10 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

1 192 124 130 103 106 103 21 81 352 470 270 45
2 127 162 130 103 109 106 21 78 346 462 270 44
3 127 162 127 103 109 109 22 74 366 420 270 42
4 124 170 124 103 109 109 24 82 434 413 270 41
5 124 170 118 106 109 109 25 87 448 406 270 82
6 124 174 115 106 106 106 27 97 298 413 270 138
7 174 173 115 106 106 109 30 147 115 427 265 188
8 270 192 118 106 106 103 30 173 109 427 265 265
9 270 220 115 106 106 100 31 140 138 420 265 260
10 270 220 115 106 106 109 34 98 287 413 270 260
11 270 215 118 106 106 109 37 85 413 413 276 265
12 270 206 103 106 109 109 39 90 478 427 276 260
13 270 210 100 106 109 109 41 84 470 427 270 235
14 103 206 103 106 109 109 39 85 470 413 270 265
15 31 197 115 106 109 109 36 91 485 406 265 265
16 30 174 115 106 109 109 39 95 508 413 265 269
17 28 170 109 106 109 109 39 98 500 399 282 43
18 28 166 109 103 109 109 37 112 500 399 276 40
19 27 142 109 103 109 109 31 120 508 392 270 44
20 26 130 109 103 106 97 31 134 470 399 265 45
21 24 134 109 103 103 82 30 139 448 346 265 42
22 23 127 109 100 103 70 34 128 448 292 265 41
23 24 124 106 106 103 65 58 124 448 292 260 39
24 24 130 106 106 106 34 45 133 478 292 287 39
25 26 138 106 106 106 19 33 159 462 304 138 37
26 26 138 103 106 106 19 34 259 427 287 63 37
27 26 138 103 106 103 19 37 371 420 255 49 36
28 24 138 103 97 103 19 46 349 385 265 44 36
29 17 134 103 106 103 19 50 333 385 276 42 36
30 40 130 103 106 --- 21 72 366 392 276 41 34
31 73 --- 103 106 --- 21 --- 366 --- 270 44 ---

TOTAL 3212 4914 3451 3247 3092 2529 1073 4778 11988 11514 6898 3473
MEAN 104 164 111 105 107 81.6 35.8 154 400 371 223 116
AC-FT 6370 9750 6850 6440 6130 5020 2130 9480 23780 22840 13680 6890
MAX 270 220 130 106 109 109 72 371 508 470 287 269
MIN 17 124 100 97 103 19 21 74 109 255 41 34

CAL YR 1991 TOTAL 62474 MEAN 171 MAX 613 MIN 17 AC-FT 123900
WTR YR 1992 TOTAL 60169 MEAN 164 MAX 508 MIN 17 AC-FT 119300

MAX DISCH 538 CFS AT 2400 24-JUN-1992 GH 1.80 FT. SHIFT 0.01 FT. MAX GH 1.80 FT. AT 2400
24-JUN-1992