Lake
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
6 to January 18, 2003.
The
drawdown is scheduled to begin at 8am Mountain Standard Time on Monday, January
6. Water levels are expected to return to normal elevations by approximately
late afternoon Saturday, January 18.
During
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
be extended.
Releases
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 are expected to remain within normal operating levels during
this activity. The drawdown is expected to have only a minimal impact on flows
below Headgate Rock Dam.
This
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.
All
RIVER USERS should remember that fluctuating river flows may conceal or create
natural hazards such as moving sandbars, gravel bars, unstable riverbanks, floating
or submerged debris, or other unfamiliar obstacles. Caution should be be exercised
while using the river between Davis Dam and the Mexican Border at San Luis,
Arizona.