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<br />FLAMlNG GORGE RESEROVIR
<br />(GREEN RIVER)
<br />
<br />
<br />WalerYear 1987
<br />
<br />Flaming Gorge Reservoir started water year 1987 at elevatioD
<br />6,037.3 feet with aD active storage of 3,638,000 acre-feet.
<br />Releases from Flaming Gorge Dam for waler year 1987 were
<br />projected to be 2,29 MAF for the most probable operating
<br />plaD based on the October forecast of an unregulated inflow
<br />of 2,32 MAP.
<br />
<br />Flaming Gorge. Reservoir was gradually drawn down to
<br />elevation 6,027.47 feet by January 1, 1987, The forecast of
<br />April through July runoff made on January I, 1987, was 1.35
<br />MAP or 112 percent of average, Powerplant releases for
<br />JaDuary and February averaged 3,200 cfs. On March 1, 1987,
<br />the April through July forecast had decreased to 81 percent
<br />of average, subsequeDtly powerplant releases were decreased
<br />to an average release of 1,300 cfs for the mODths of March and
<br />April, With the cODtinuance of the dry weather patterD over
<br />the western states, the May I, 1987 forecast had decreased 10
<br />only 65 perceDt of average. In expectatioD of increased runoff
<br />into FlamiDg Gorge resultiDg from warm temperatures
<br />melting the snowpack, releases from the powerplant were
<br />iDcreased to aD average of 1,600 cfs for the mODth of May, The
<br />months of May aDd June cODtinued to be hot and dry and the
<br />
<br />ACTUAL RELEASES
<br />
<br />WY 1987
<br />
<br />.... CFII
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<br />o N D J F M A M J J A S 0
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<br />spring runoff dropped cODsiderahly by the eDd of June,
<br />F1amipg Gorge reached a maximum elevatioD of 6,034.0 OD
<br />June 30, with a storage of apprIlximate\y 3,50 MAF,
<br />
<br />Releases from Flaming Gorge Dam were constraiDed to a
<br />maximum of 2,600 cfs duriDg the mODths of Augusl and
<br />September to provide interim protectioD to the endangered
<br />Colorado Squawfish, This species is currently being studied
<br />as part of the Recovery ImplementatioD Program in the
<br />Upper Colorado River Basin aDd restricted summer flows are
<br />thought to enhaDcc the downstream habitat of the fish,
<br />
<br />The actual April through July unregulated runoffinto FlamiDg
<br />Gorge Reservoir was 952,000 acre-feet or 79 percent of
<br />average, The peak inflow during the runoff was 11,100 cfs on
<br />May 22, 1987, aDd the peak total discharge was 3,990 cfs May
<br />3-6, The total unregulated inflow for water year 1987 was 1.55
<br />MAP or 94 percent of average, Total releases for the water
<br />year was 1,616,000 acre-feet, all of which was passed through
<br />the powerplan!. The spillway was not used during the water
<br />year,
<br />
<br />FLAMING GORGE RESERVOIR
<br />
<br />Reservoir
<br />
<br />Acre-feet
<br />
<br />Elevation, feet
<br />
<br />Maximum Storage
<br />Rated Head
<br />Minimum Power
<br />Surface Area, full
<br />Reservoir Length, full
<br />
<br />3,749,000
<br />1,062,000
<br />233,000
<br />
<br />6,040
<br />5,946
<br />5,871
<br />42,020 ACles
<br />91 Miles
<br />
<br />Powerplant
<br />
<br />Number of Units
<br />Total Capacity
<br />
<br />3
<br />108,000 KW
<br />
<br />7
<br />
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