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MISSOURI RIVER MAIN STEM
06185500 MISSOURI RIVER NEAR CULBERTSON, MT
(National stream quality accounting network station)
LOCATION.--Lat 48°07'30", long 104°28'20", in SE1/4NW1/4 sec.3, T.27 N., R.56 E., Richland County, Hydrologic Unit 10060005, on
right bank at upstream side of bridge on State Highway 16, 2.5 mi southeast of Culbertson, 10 mi downstream from Big Muddy
Creek, and at river mile 1,620.76.
DRAINAGE AREA.--91,557 mi2.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--July 1941 to December 1951, April 1958 to current year.
REVISED RECORDS.--WSP 1729: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,883.4 ft above sea level (U.S. Army Corps of Engineers bench mark). July 1 to Nov. 6, 1941, water-stage recorder at site 400 ft upstream at datum 0.11 ft higher. Nov. 7, 1941, to Aug. 17, 1950, water-stage recorder at site 580 ft downstream at present datum. Aug. 18, 1950, to Dec. 31, 1951, nonrecording gage on bridge at present datum. Apr. 1, 1958, to Nov. 1, 1967, water-stage recorder at site 580 ft downstream at present datum.
REMARKS.--Water-discharge records good except those for estimated daily discharges, which are poor. Flow partly regulated by Fort Peck Lake (station number 06131500) and many other reservoirs upstream from station. Diversions for irrigation of about 1,030,400 acres upstream from station. U.S. Army Corps of Engineers satellite telemeter at station.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 e5790 5700 6000 10200 e9750 e8450 5780 8960 10000 8760 8390 8710
2 5590 5660 7060 10300 e9750 e8800 5680 9540 10100 8720 8460 8810
3 5640 5530 8010 10600 e9700 e8950 5630 9450 10300 9270 8750 9000
4 5730 5760 8280 11300 e9400 e9200 5600 9210 10200 9600 9060 9070
5 5720 5880 8240 e8410 e8600 e9300 5520 9220 9990 10000 8750 8960
6 5710 5670 8150 e10800 e8450 e9000 5780 9470 9850 10200 8730 8890
7 5620 5710 8150 e11200 e8300 e8790 6260 9530 9840 9770 8720 8770
8 5680 5770 8290 e10200 e8300 e8450 6410 9470 10100 10200 8860 8910
9 5630 5550 8970 e10200 e8500 e8100 6460 9360 10500 11100 8790 8890
10 5540 5640 9380 e10200 e8650 e7000 6510 8990 10700 11700 8840 8930
11 5580 5620 9460 e10200 e8500 e6500 6540 8880 10700 13500 8830 8870
12 5720 5460 9400 e10300 e8650 e6500 6580 8980 10700 12800 8930 7440
13 5720 5390 9450 e10700 e8450 e6550 6530 9230 10500 11400 8800 6210
14 5490 5420 9440 e10000 e8250 6680 6470 9490 11000 10800 8710 5780
15 5430 5350 9600 e10300 e8500 6420 6260 9310 11500 10900 8700 5620
16 5540 5340 10000 e10500 e8500 6310 6380 9330 11600 11100 8640 5490
17 5470 5260 10300 e10500 e8050 6200 6490 9370 11400 11400 8670 5530
18 5520 5450 10400 e10500 e8500 6080 6650 9280 11000 11200 8750 5520
19 5680 5740 e10300 e10500 e8500 6130 6820 9260 9950 10800 8720 5750
20 5680 5860 e10300 e10500 e8500 6160 7150 9360 9670 10200 8710 5930
21 5580 5780 e10200 e10500 e8500 6210 7470 9470 9560 9930 8880 5930
22 5540 5700 e10600 e10500 e8500 6090 7610 9200 9440 9820 8760 5960
23 5510 5700 e10300 e9300 e8500 5980 7640 9290 9230 9600 8600 5950
24 5470 5690 e10300 e9500 e8350 5910 7560 9220 9060 9560 8740 5920
25 5480 5680 e10200 e9500 e8350 5910 7500 9250 9030 9470 8750 5890
26 5500 5730 e10100 e9500 e8000 5950 7470 9280 9160 9410 8750 5810
27 5490 5790 e9950 e9500 e8450 5820 7390 9320 9090 9060 8860 5770
28 5600 5740 e9950 e9500 e8450 5770 7340 9100 9070 8640 8890 5810
29 5730 5710 e10100 e9500 e8450 5710 7090 9290 8970 8600 8810 5800
30 5720 5760 e10000 e9500 --- 5690 7470 9650 8820 8680 8720 5810
31 5720 --- e10000 e9900 --- 5760 --- 9730 --- 8660 8760 ---
TOTAL 173820 169040 290880 314110 249350 214370 200040 288490 301030 314850 271330 209730
MEAN 5607 5635 9383 10130 8598 6915 6668 9306 10030 10160 8753 6991
MAX 5790 5880 10600 11300 9750 9300 7640 9730 11600 13500 9060 9070
MIN 5430 5260 6000 8410 8000 5690 5520 8880 8820 8600 8390 5490
AC-FT 344800 335300 577000 623000 494600 425200 396800 572200 597100 624500 538200 416000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2000, BY WATER YEAR (WY)*
MEAN 10910 9399 9194 9970 10620 10530 10730 9647 9785 10330 11500 11290
MAX 28570 22440 13280 14400 17450 20690 32840 26220 26650 37050 25300 26590
(WY) 1949 1952 1944 1986 1976 1976 1979 1979 1975 1975 1948 1948
MIN 1237 1126 1061 1010 1167 2674 1965 1353 1366 1273 3823 3771
(WY) 1942 1942 1942 1943 1942 1950 1945 1945 1945 1945 1963 1992
SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1941 - 2000*
ANNUAL TOTAL 3629090 2997040
ANNUAL MEAN 9943 8189 10330
HIGHEST ANNUAL MEAN 16580 1975
LOWEST ANNUAL MEAN 4083 1942
HIGHEST DAILY MEAN 22400 Mar 28 13500 Jul 11 69200 Mar 27 1943
LOWEST DAILY MEAN 5260 Nov 17 5260 Nov 17 575 Nov 22 1941
ANNUAL SEVEN-DAY MINIMUM 5380 Nov 12 5380 Nov 12 709 Nov 19 1941
INSTANTANEOUS PEAK FLOW a14200 Jul 12 c78200 Mar 26 1943
INSTANTANEOUS PEAK STAGE b13.92 Jan 11 b19.66 Apr 14 1979
INSTANTANEOUS LOW FLOW 575 Nov 22 1941
ANNUAL RUNOFF (AC-FT) 7198000 5945000 7482000
10 PERCENT EXCEEDS 12400 10300 16000
50 PERCENT EXCEEDS 9960 8720 9600
90 PERCENT EXCEEDS 5650 5640 4470
SUMMARY STATISTICS FOR WATER YEARS 1941-51** WATER YEARS 1958 - 2000***
ANNUAL MEAN 9245 10580
HIGHEST ANNUAL MEAN 14520 1948 16580 1975
LOWEST ANNUAL MEAN 4083 1942 6121 1963
HIGHEST DAILY MEAN 69200 Mar 27 1943 52000 Apr 18 1979
LOWEST DAILY MEAN 575 Nov 22 1941 2000 Nov 20 1964
ANNUAL SEVEN-DAY MINIMUM 709 Nov 19 1941 2130 Nov 19 1964
INSTANTANEOUS PEAK FLOW c78200 Mar 26 1943 d55000 Mar 23 1960
INSTANTANEOUS PEAK STAGE b15.12 Mar 26 1943 b19.66 Apr 14 1979
ANNUAL RUNOFF (AC-FT) 6698000 7668000
10 PERCENT EXCEEDS 21000 15200
50 PERCENT EXCEEDS 6910 9800
90 PERCENT EXCEEDS 1400 5940
*--During period of operation (1941-52, 1958 to current year).
**--Before operational level at Fort Peck Lake was reached.
***--After operational level of Fort Peck Lake was reached.
a--Gage height, 6.86 ft.
b--Backwater from ice.
c--Gage height, 14.80 ft, from rating curve extended above 30,000 ft3/s.
d--Gage height, 19.14 ft, backwater from ice.
e--Estimated.
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