|
<br />00
<br />
<br />en
<br />
<br />en
<br />
<br />C\J
<br />
<br />c"
<br />o
<br />
<br />Location.--Water-stage recorder, lat 37'41'20", long 106'27'30", in NW;t sec. 29, T. 40 N.,
<br />H. b ~., on right bank, 20 ft downstream from county highway bridge, 5 miles upstream
<br />from Pinos Creek"and 6 miles west of Del Norte. Datum of gage is 7,980.25 ft above
<br />mean sea level, datum of 1929. Prior to May 16, 1908, staff gage at site 4 miles
<br />downstream. Records are equivalent.
<br />
<br />STREAM FLOW
<br />
<br />33
<br />
<br />Rio Grande near Del Norte, Colo.
<br />
<br />Drainage area.--l,320 eq mi, approximately.
<br />
<br />Average diacharge.--70 years (1890-1959) 925 cfa (669,700 acre-ft per year).
<br />
<br />Extremes.--1889-1959: Maximum discharge, 18,000 cfs Oct. 5, 1911 (gage height, 6.80 ft),
<br />from rating curve extended above 6,000 cfs; minimum daily, 69 cfs Aug. 21, 1902.
<br />
<br />Remarks.--Records excellent except for some winter months, which are fair.
<br />by four large reservoirs, total capacity 126,100 acre-ft, and by several
<br />Six transmountain diversions import water into basin above station.
<br />
<br />Flow regulated
<br />smaller ones.
<br />
<br /> Monthlv and vearlv dlschar~e in cubic feet per second
<br /> Second- Maximum Minimum Runoff
<br /> Month Mean in
<br /> foot-days daily da lly Acre-f'eet
<br />January. . . 3,54-0 140 90 114 7,020
<br />]'ebruary 4,095 200 100 146 8,120
<br />March. . . 5,523 212 130 178 10,950
<br />April. . . 11,376 547 212 379 22,560
<br />May, . 38,998 2,130 688 1,258 77 ,350
<br />June . . 59,507 3,020 846 1,984- 118,000
<br />July . . 12,588 762 226 406 24,970
<br />August . . 14,041 688 296 453 27 ,850
<br />September. . 6,841 318 198 226 1.3,570
<br />October. . . 13,511 574 296 436 26,800
<br />November . . :: 9,471 547 132 316 18,790
<br />December . 5 557 210 160 179 11 020
<br />Calenaar year .1::1:::1::1 . 185 048 3 020 90 507 367 000
<br />
<br />ConeJos River below Platoro Reservoir, Colo.
<br />
<br />Location--Water-stage recorder and concrete control, lat 3702112011, long 106032135", in
<br />NW~NWt sec. 22, T. 36 N., R. 4 E., on left bank 1,500 ft downstream from valve house
<br />for Platoro Reservoir and half a mile northwest of Platoro. Datum of gage is
<br />9,866.60 ft above mean sea level (levels by Bureau of Reclamation).
<br />
<br />Drainage area.--40 aq mi, approximately.
<br />
<br />~verage discharge.--7 years (1953-59) 83.1 cfs (60,160 acre-ft per year).
<br />
<br />t<tremes.--1952-59: Maximum discharge, 1,160 cfs Nov. 1, 1957; maximum gage height,
<br />4.~9 ft June 15, 1958; no flow Oct. 16-20, 1955.
<br />
<br />temarks.--Records good except those for winter months, which are poor. No diversions
<br />above station. Flow completely regulated by Platoro Reservoir (capaCity,
<br />60,000 acre-ft).
<br />
<br /> Monthlv and vearlv discharg'e in cub1c :feet per Becond
<br /> Second- Maximum Min1mum Runoff
<br /> Month Mean in
<br /> foot-daYB daily daily Acre-f'eet
<br />January. . . 372 12 12 12.0 738
<br />February . . 214.3 12 7.4 7.65 425
<br />March. . 229.4 7.4 7.4 7.40 455
<br />April. . 574.2 79 7.8 19.1 1,140
<br />May. . . 6,218 545 74 201 12,330
<br />June . 8,086 572 71 270 16.040
<br />July . 16,901 890 23 545 33,520
<br />AuguBt . 1,618 116 20 52.2 3,210
<br />September. . . . . 232.8 20 4.1 7.76 462
<br />October. 1,462.7 83 4.7 47.2 2,900
<br />November . . ~~; ~~ ~; ~~.~ 1,~~~
<br />December .
<br />valen ar year ," . 3./ ,041.4 B90 4.1 101 73,470
<br />
<br />
|