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HEART RIVER BASIN

06346000 LAKE TSCHIDA NEAR GLEN ULLIN, ND

LOCATION.--Lat 46×35'43", long 101×48'34", in SW14 NE14 sec.13, T.136 N., R.89 W., Grant County, Hydrologic Unit 10130202, 10 mi upstream from Heart Butte Creek and 14 mi north of Elgin.

DRAINAGE AREA.--1,710 mi2, approximately.

MONTHEND-ELEVATION AND CONTENTS RECORDS

PERIOD OF RECORD.--August 1949 to current year. Prior to October 1957, published as Heart Butte Reservoir near Glen Ullin.

GAGE.--Water-stage recorder. Datum of gage is at National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation).

REMARKS.--Reservoir is formed by earth-fill dam; storage began Sept. 29, 1949; dam completed Dec. 9, 1949. Total capacity is 430,000 acre-ft at maximum pool, elevation, 2,118.2 ft. Dead storage is 6,750 acre-ft below lowest point of outlet, elevation, 2,030.0 ft. Active conservation storage is 69,030 acre-ft between elevations 2,030.0 ft and 2,064.5 ft, crest of spillway. Figures given herein represent total contents based on capacity table dated August 1992.

Controlled releases are through 4 by 5 ft slide gate. The spillway is uncontrolled "glory hole" type and discharges through a conduit 14 ft in diameter. The reservoir is for flood control, irrigation, and incidental water supply.

COOPERATION.--Records furnished by U.S. Bureau of Reclamation. Extremes are those observed.

EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 174,000 acre-ft, Apr. 9, 1952, elevation, 2,086.23 ft; minimum since first reaching spillway level, 32,820 acre-ft, Oct. 25, 1991, elevation, 2,049.00 ft.

EXTREMES FOR CURRENT YEAR.--Maximum contents, 82,020 acre-ft, Mar. 12, elevation, 2,068.77 ft; minimum, 54,930 acre-ft, Oct. 28, elevation, 2,060.60 ft.
MONTHEND ELEVATION AND CONTENTS AT 2400, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
Date
Elevation
(feet)
Contents
(acre-feet)
Change in contents
(acre-feet)
 



Sept. 30
2,060.71
55,260
--
Oct. 31
2,060.66
55,110
-150
Nov. 30
2,060.87
55,740
+630
Dec. 31
2,061.01
56,160
+420
 
 
 

CAL YR 2003
--
--
+1,400
 
 
 

Jan. 31
2,061.15
56,580
+420
Feb. 29
2,061.52
57,700
+1,120
Mar. 31
2,066.05
72,360
+14,660
Apr. 30
2,064,89
68,440
-3,920
May 31
2,064.83
68,240
-200
June 30
2,063.96
65,370
-2,870
July 31
2,062.37
60,310
-5,060
Aug. 31
2,061.49
57,600
-2,710
Sept. 30
2,061.18
56,670
-930
 
 
 

WTR YR 2004
--
--
+1,410
 


 


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