Summary
Completed in 1961, this Earth-type dam stands at a height of 24.5 feet and has a storage capacity of 32 acre-feet. The reservoir primarily serves irrigation purposes, but also supports fish and wildlife habitats, as well as recreational activities.
Managed by the Walla Walla District of the US Army Corps of Engineers, Hawks Nest Reservoir has a low hazard potential and is currently in a not rated condition. The dam features a slide (sluice gate) outlet and covers a surface area of 4.8 acres. While the dam has not been modified in recent years, it is subject to state regulations and inspections to ensure its safety and compliance with environmental standards.
Despite its small size and limited drainage area, Hawks Nest Reservoir plays a crucial role in supporting local agriculture and wildlife in the region. With a focus on sustainable water management and conservation, this reservoir serves as a vital resource for the community while offering opportunities for outdoor recreation and environmental stewardship.
Year Completed |
1961 |
Dam Length |
385 |
Dam Height |
24.5 |
Primary Dam Type |
Earth |
Surface Area |
4.8 |
Hydraulic Height |
20 |
Nid Storage |
32 |
Structural Height |
25 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Owyhee River Nr Rome Or
|
189cfs |
Owyhee River Below Owyhee Dam Or
|
30cfs |
Snake River Nr Murphy Id
|
6650cfs |
Dixie Drain Nr Wilder Id
|
52cfs |
Boise River At Caldwell
|
519cfs |
Conway Gulch Below 1st St At Notus
|
11cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Hawks Nest Reservoir
Carter Cr Sf