RED RIVER OF THE NORTH BASIN
05057500 LAKE ASHTABULA AT BALDHILL DAM, ND
LOCATION.--Lat 47
×02'00", long 98
×05'00", in NW
14 sec.18, T.141
N., R.58 W., Barnes County, Hydrologic Unit 09020203, at Baldhill Dam on Sheyenne River and 8 mi northwest of Valley City.
DRAINAGE AREA.--7,470 mi
2, approximately, of which about 5,560 mi
2 is probably noncontributing, including 3,800
mi
2 in closed basins.
MONTHEND-ELEVATION AND CONTENTS RECORDS
PERIOD OF RECORD.--July 1949 to current year.
REVISED RECORDS.--WSP 1238: 1950(M). WSP 1728: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,200 ft above National Geodetic Vertical Datum of 1929.
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, 1,273.2 ft,
capacity, 116,500 acre-ft. 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).
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 98,210 acre-ft, Apr. 7, 2004, elevation, 1,270.51 ft; minimum since reservoir first reached spillway level, 6,660 acre-ft,
Aug. 11-14, 1950, elevation, 1,245.13 ft.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 98,210 acre-ft, Apr. 7, elevation, 1,270.51 ft; minimum, 55,350 acre-ft, Feb. 23 and 25-28, elevation, 1,263.17 ft.
MONTHEND ELEVATION AND CONTENTS, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
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Elevation
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Contents
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Change in contents
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