Summary
Built in 1995 by designer Knight Piesold, this private dam stands at a height of 67 feet and has a storage capacity of 5350 acre-feet. The dam, primarily constructed with earth and stone core types on a rock foundation, spans a length of 1228 feet and covers a surface area of 165 acres, with a drainage area of 26.3 square miles.
With a low hazard potential and a satisfactory condition assessment as of January 2020, Fort Knox Water Dam plays a vital role in managing the water resources of Fish Creek. The dam's uncontrolled spillway, 106 feet in width, ensures the safe discharge of excess water, with a maximum discharge capacity of 8400 cubic feet per second. While the dam has not been modified in recent years, regular inspections every five years help maintain its integrity and safety standards, meeting state enforcement and regulatory requirements set by the Alaska Department of Natural Resources.
As climate change continues to impact water resources globally, Fort Knox Water Dam stands as a crucial infrastructure for water supply in the region. Its moderate risk assessment highlights the importance of ongoing risk management measures to ensure the dam's resilience in the face of changing environmental conditions. With its strategic location and role in supporting the local community's water needs, this dam represents a significant asset in the sustainable management of water resources in Alaska's Fairbanks North Star region.
Dam Height |
67 |
Hydraulic Height |
64 |
Drainage Area |
26.3 |
Year Completed |
1995 |
Structural Height |
70 |
Nid Storage |
5350 |
Foundations |
Rock |
Surface Area |
165 |
River Or Stream |
FISH CREEK |
Dam Length |
1228 |
Hazard Potential |
Low |
Primary Dam Type |
Earth |
Nid Height |
70 |
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.
Fort Knox Water Dam