Moovalya, the small body of water impounded behind Headgate Rock Dam north of
Parker, Arizona, will be lowered approximately ten feet in elevation from January
7th to January 11th, 2002.
drawdown is scheduled to begin at 8am Mountain Standard Tome on Monday, January
7th. Water levels are expected to return to normal elevations by approximately
late afternoon Friday, January 11th.
the drawdown, Lake Moovalya will be lowered approximately 10 feet to elevation
354.40. It is anticipated the time required to lower the lake will be approximately
2 days, but if unfavorable conditions are encountered, the drawdown time could
from Parker Dam and flows below Headgate Rock Dam will vary as necessary to
meet downstream water requirements. Flows below Parker and Headgate Rock dams
could range as low as 1,500 cubic feet per second if rainy weather conditions
or other extenuating circumstances (i.e. contractor delays) should occur. Lake
Havasu elevations will not be impacted by this activity. The drawdown is expected
to have only a minimal impact on flows below Headgate Rock Dam.
drawdown should not be construed as normal or as a resumption of a tradition
practiced in past years which featured a significant drawdown (nine feet or
more) every year. Most drawdowns in the future will be limited to a drop in
lake elevation of approximately one foot.
river users should remember that fluctuating or lower than normal river flows
may expose or create natural hazards such as moving sandbars, gravel bars, unstable
riverbanks, floating or submerged debris, or other unfamiliar obstacles. As
always, caution should be exercised while using the river.