USGS Water-Year Summary for Site 05057500

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	Available Parameters
	00065 Gage height(Mean)
	62614 Elevation, lake/res, NGVD29(Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

05057500 LAKE ASHTABULA AT BALDHILL DAM, ND

LOCATION - Lat 47°02'10.28", long 98°04'53.53" referenced to North American Datum of 1983, in sec.18, T.141 N., R.58 W., Barnes County, ND, Hydrologic Unit 09020203, at Baldhill Dam on Sheyenne River and 8 mi northwest of Valley City.

DRAINAGE AREA - 7,470 mi² of which 5,560 mi² probably is noncontributing. including 3,800 mi² in closed basins.

REVISIONS HISTORY - WSP 1238: 1950(M). WSP 1728: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - MONTH-END ELEVATION AND CONTENTS--July 1949 to current year.

PERIOD OF RECORD.--DAILY ELEVATION--October 2000 to current year.

GAGE -

Water-stage recorder. Datum of the gage is 1201.23 feet above North American Vertical Datum 1988 (NAVD88) and 1200.00 feet above National Geodetic Vertical Datum of 1929 (NGVD29). Prior to October 1st, 2022, data were published in elevation in NGVD29.

REMARKS -

Reservoir is formed by an earth-filled dam, 1,650 ft long; storage began on July 30, 1949; dam completed September 1949. Usable capacity, 69,100 acre-ft between invert of outlet conduit, elevation, 1,238.0 ft, and normal pool level, elevation 1,266.0 ft. Dead storage below elevation 1,238.0 ft, 1,500 acre-ft. Maximum pool elevation, 1,278.5 ft, capacity, 157,500 acre-ft. Maximum elevation and capacity increased by construction, which was completed in the fall of 2003. Low flows are controlled by 2 sluice gates 3 ft in diameter. The spillway crest is 120 ft long at elevation 1,252.0 ft, surmounted by 3 taintor gates, each 15 ft high and 40 ft long. The reservoir is operated for flood control and to increase low-water flow. Figures given for storage capacity (in acre-ft) based on capacity table dated 1978 (provided by U.S. Army Corps of Engineers).

Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, published elevation records good, except for the 2019 and 2022 water years, when record was fair.

EXTREMES FOR PERIOD OF RECORD -

Maximum contents, 98,210 acre-ft, April 7, 2004, elevation, 1,270.51 ft; minimum since reservoir first reached spillway level, 6,660 acre-ft, August 11-14, 1950, elevation, 1,245.13 ft.

EXTREMES FOR WATER YEAR 2014.--Maximum contents, 77,170 acre-ft, April 24, elevation, 1,267.15 ft; minimum contents, 46,670 acre-ft, March 13, elevation, 1,261.26 ft.

MONTH-END ELEVATION AND CONTENTS AT 2400, WATER YEAR OCTOBER 2013 TO SEPTEMBER 2014

Date   Elevation, in ft  Contents, in acre-ft  Change in contents
Sep. 30    1,266.06             70,940
Oct. 31    1,265.78             69,370              -1,570
Nov. 30    1,264.42             61,810              -7,560
Dec. 31    1,263.62             57,600              -4,210
CAL YR 2013            --------    ---------        -5,420
Jan. 31    1,262.77             53,460              -4,140
Feb. 28    1,261.82             49,190              -4,270
Mar. 31    1,263.41             56,550              +7,360
Apr. 30    1,266.42             72,990             +16,440
May 31     1,265.86             69,820              -3,170
June 30    1,265.92             70,150                +330
July 31    1,265.82             69,590                -560
Aug. 31    1,265.82             69,590                   0
Sep. 30    1,265.60             68,360              -1,230
WTR YR 2014            --------     ---------       -2,580

EXTREMES FOR WATER YEAR 2015.--Maximum contents, 72,420 acre-ft, May 11, elevation, 
1,266.32 ft; minimum contents, 52,250 acre-ft, March 6-9, elevation, 1,262.50 ft.
MONTH-END ELEVATION AND CONTENTS AT 2400, WATER YEAR OCTOBER 2014 TO SEPTEMBER 2015

Date   Elevation, in ft  Contents, in acre-ft  Change in contents
Sep. 30    1,265.60             68,360
Oct. 31    1,265.15             65,900              -2,460
Nov. 30    1,264.24             60,820              -5,080
Dec. 31    1,263.50             57,000              -3,820
CAL YR 2014            --------    ---------          -600
Jan. 31    1,262.89             54,010              -2,990
Feb. 28    1,262.60             52,700              -1,310
Mar. 31    1,264.62             62,910             +10,210
Apr. 30    1,265.89             69,980              +7,070
May 31     1,265.71             68,980              -1,000
June 30    1,265.82             69,590                +610
July 31    1,265.55             68,080              -1,510
Aug. 31    1,265.82             69,590              +1,510
Sep. 30    1,265.49             67,740              -1,850
WTR YR 2015            --------     ---------         -620

EXTREMES FOR WATER YEAR 2016.--Maximum contents, 72,200 acre-ft, April 25, elevation, 
1,266.28 ft; minimum contents, 52,520 acre-ft, February 19, elevation, 1,262.56 ft.
MONTH-END ELEVATION AND CONTENTS AT 2400, WATER YEAR OCTOBER 2015 TO SEPTEMBER 2016

Date   Elevation, in ft  Contents, in acre-ft  Change in contents
Sep. 30    1,265.52             67,740
Oct. 31    1,264.54             62,420              -5,320
Nov. 30    1,263.45             56,750              -5,670
Dec. 31    1,263.16             55,300              -1,450
CAL YR 2015            --------    ---------        -1,700
Jan. 31    1,262.67             53,020              -2,280
Feb. 29    1,262.73             53,280                +260
Mar. 31    1,265.48             67,690             +14,410
Apr. 30    1,265.88             69,930              +2,240
May 31     1,265.89             69,980                 +50
June 30    1,265.89             69,980                   0
July 31    1,265.84             69,700                -280
Aug. 31    1,265.87             69,870                +170
Sep. 30    1,265.86             69,820                 -50
WTR YR 2016            --------     ---------       +2,080

EXTREMES FOR WATER YEAR 2017.--Maximum contents, 90,310 acre-ft, April 18, elevation, 
1,269.30 ft; minimum contents, 37,160 acre-ft, March 19, elevation, 1,258.87 ft.
MONTH-END ELEVATION AND CONTENTS AT 2400, WATER YEAR OCTOBER 2016 TO SEPTEMBER 2017

Date   Elevation, in ft  Contents, in acre-ft  Change in contents
Sep. 30    1,265.86             69,820
Oct. 31    1,265.29             66,200              -3,620
Nov. 30    1,264.92             64,560              -1,640
Dec. 31    1,263.62             57,600              -6,960
CAL YR 2016            --------    ---------        +2,300
Jan. 31    1,261.15             46,180             -11,420
Feb. 28    1,259.47             39,530              -6,650
Mar. 31    1,264.16             60,380             +20,850
Apr. 30    1,266.38             72,770             +12,390
May 31     1,265.95             70,320              -2,450
June 30    1,266.02             70,710                +390
July 31    1,265.92             70,150                -560
Aug. 31    1,265.77             69,310                -840
Sep. 30    1,265.69             68,860                -450
WTR YR 2017            --------     ---------         -960