HEART RIVER BASIN

06345500 HEART RIVER NEAR RICHARDTON, ND

LOCATION.--Lat 46×44'44", long 102×18'30", in NE14NW14 sec.29, T.138 N., R.92 W., Stark County, Hydrologic Unit 10130202, on right bank 50 ft upstream from bridge on State Highway 8, 0.5 mi downstream from Plum Creek, and 9.5 mi south of Richardton.

DRAINAGE AREA.--1,240 mi2, approximately.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--June 1903 to September 1922, April 1943 to current year. Monthly discharge only for some periods, published in WSP 1309.

REVISED RECORDS (WATER YEARS).--WSP 1209: Drainage area. WSP 1239: 1906, 1918(M), 1947(M).

GAGE.--Water-stage recorder. Datum of gage is 2,153.67 ft above National Geodetic Vertical Datum of 1929. May 18, 1903, to Sept. 30, 1922, nonrecording gage at 3 sites in 1 mi reach below present site at different datums. Apr. 14, 1943, to July 7, 1947, nonrecording gage at present site and datum.

REMARKS.--Records good except for estimated daily discharges, which are poor. Flow is regulated by E.A. Patterson Lake (station 06343500), 85 river miles upstream, since 1950. Some diversions for irrigation and water supply at low flow.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of July 5, 1938, reached a stage of about 26 ft, from information by local residents, discharge, 16,000 ft3/s; flood of Mar. 25, 1943, reached a stage of 24.2 ft from floodmarks, discharge, 11,700 ft3/s.

Discharge, cubic feet per second 

WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

DAILY MEAN VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	7.3	e13	e12	e6.8	e6.3	e351	154	21	14	5.9	20	5.6
2	7.9	e13	e11	e6.8	e6.3	e150	133	20	14	7.6	20	4.7
3	7.7	e12	e11	e6.5	e6.3	e51	111	19	14	8.5	19	4.5
4	7.4	e12	e10	e6.4	e6.4	e11	94	18	14	7.7	19	4.3
5	7.2	e12	e9.6	e6.1	e6.5	e9.0	82	17	17	8.1	20	3.9
6	7.4	e12	e9.3	e5.6	e6.5	e20	70	16	14	8.6	44	3.4
7	8.0	e13	e9.3	e5.0	e6.7	e100	63	23	12	8.9	49	4.8
8	8.9	e14	e9.3	e4.4	e6.7	e197	57	47	10	17	46	10
9	9.7	e15	e9.4	e5.1	e6.9	e946	52	35	9.6	29	45	8.6
10	9.6	e15	e9.6	e5.7	e7.1	e2,500	47	23	9.7	31	51	8.2
11	9.5	e15	e9.5	e6.0	e7.2	e2,960	43	20	11	30	41	7.5
12	8.5	e15	e9.1	e6.2	e7.3	e2,620	40	18	12	18	41	7.2
13	8.2	e15	e8.9	e6.4	e7.4	e1,650	38	18	11	12	46	8.5
14	8.1	e14	e9.1	e6.7	e7.4	e971	36	17	12	9.3	46	10
15	8.4	e14	e9.0	e6.9	e7.5	e765	34	17	13	7.4	45	11
16	9.5	e14	e9.2	e7.0	e7.5	e644	32	16	11	6.5	44	13
17	10	e13	e9.3	e7.1	e7.7	e566	31	16	10	5.6	43	19
18	11	e13	e9.4	e7.1	e7.8	e440	33	15	9.2	4.8	44	15
19	11	e13	e9.4	e6.9	e7.8	e453	37	15	8.4	4.2	42	15
20	11	e13	e9.3	e6.7	e7.8	605	49	15	7.8	3.9	40	15
21	12	e13	e9.2	e6.5	e7.9	740	49	15	7.3	4.2	33	14
22	12	e13	e8.9	e6.5	e8.4	610	41	16	7.1	3.2	19	14
23	12	e12	e8.7	e6.5	e9.7	430	37	16	6.9	2.9	15	14
24	11	e12	e8.4	e6.5	e13	319	33	18	6.5	4.2	13	18
25	11	e12	e8.0	e6.5	e17	254	31	21	6.3	6.4	12	16
26	11	e11	e7.7	e6.4	e21	211	28	22	6.2	11	10	14
27	11	e11	e7.5	e6.4	e22	484	26	23	6.5	13	9.1	13
28	11	e11	e7.2	e6.4	e102	365	25	21	6.3	13	8.8	12
29	12	e11	e7.1	e6.4	e250	254	23	20	6.2	13	8.1	12
30	e13	e12	e7.0	e6.4	---	220	21	18	6.0	16	7.3	11
31	e13	---	e7.0	e6.4	---	179	---	16	---	19	6.3	---
TOTAL	305.3	388	279.4	196.3	592.1	20,075.0	1,550	612	299.0	339.9	906.6	317.2
MEAN	9.85	12.9	9.01	6.33	20.4	648	51.7	19.7	9.97	11.0	29.2	10.6
MAX	13	15	12	7.1	250	2,960	154	47	17	31	51	19
MIN	7.2	11	7.0	4.4	6.3	9.0	21	15	6.0	2.9	6.3	3.4
AC-FT	606	770	554	389	1,170	39,820	3,070	1,210	593	674	1,800	629
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1903 - 2004, BY WATER YEAR (WY)
MEAN	16.9	13.8	9.10	8.86	44.5	383	314	99.8	162	67.6	29.7	11.9
MAX	240	114	52.5	112	643	2,125	2,160	1,318	1,225	584	401	86.4
(WY)	(1983)	(1983)	(1983)	(1973)	(1982)	(1945)	(1950)	(1970)	(1906)	(1969)	(1909)	(1986)
MIN	0.10	1.93	1.00	0.00	0.00	1.66	5.77	2.78	0.37	0.40	0.00	0.00
(WY)	(1961)	(1961)	(1920)	(1962)	(1950)	(1964)	(1905)	(1992)	(1961)	(1919)	(1991)	(1958)

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR	FOR 2004 WATER YEAR	WATER YEARS 1903 - 2004
ANNUAL TOTAL	32,554.0	25,860.8
ANNUAL MEAN	89.2	70.7	97.4
HIGHEST ANNUAL MEAN			316 1982
LOWEST ANNUAL MEAN			5.18 1961
HIGHEST DAILY MEAN	6,500 Mar 19	2,960 Mar 11	17,000 Apr 17, 1950
LOWEST DAILY MEAN	4.2 Sep  9	2.9 Jul 23	0.00 Jul 26, 1903
ANNUAL SEVEN-DAY MINIMUM	5.1 Sep  3	3.9 Jul 18	0.00 Jul 26, 1903
MAXIMUM PEAK FLOW		a3,500 Mar 11	23,400 Apr 16, 1950
MAXIMUM PEAK STAGE		b15.77 Mar 11	c28.05 Apr 16, 1950
ANNUAL RUNOFF (AC-FT)	64,570	51,290	70,590
10 PERCENT EXCEEDS	63	59	125
50 PERCENT EXCEEDS	11	12	12
90 PERCENT EXCEEDS	7.7	6.4	2.0

a About b Backwater from ice c From floodmark in gage well e Estimated

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