Summary
The dam stands at a height of 30 feet with a hydraulic height of 26 feet, spanning a length of 780 feet. With a storage capacity of 32.9 acre-feet and a normal storage level of 30.6 acre-feet, Pond 7 Dam plays a crucial role in managing water resources in the area.
Constructed as a rockfill dam with a spillway type of 'Uncontrolled', Pond 7 Dam has a significant hazard potential and is inspected every three years, with the latest assessment in April 2020 rating its condition as satisfactory. The dam's risk assessment is moderate, highlighting the importance of ongoing monitoring and management measures to ensure the safety and integrity of the structure. Despite being privately owned, the dam is regulated by the Alaska Department of Natural Resources, demonstrating the collaborative efforts involved in safeguarding water resources and mitigating potential risks associated with such infrastructure.
In the event of an emergency, Pond 7 Dam is equipped with emergency action plans, although their last revision was in February 2020. With notable features such as its location in the Copper River Meridian and the involvement of the Mine Safety and Health Administration in regulatory and inspection processes, Pond 7 Dam represents a critical piece of infrastructure in the region's water resource management and climate resilience efforts.
Year Completed |
2005 |
Dam Length |
780 |
Dam Height |
30 |
Primary Dam Type |
Rockfill |
Surface Area |
2.94 |
Hydraulic Height |
26 |
Drainage Area |
0.22 |
Nid Storage |
32.9 |
Structural Height |
30 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
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.
Pond 7 Dam