Summary
This dam was designed by the USDA NRCS and serves multiple purposes including fire protection, stock, and small fish pond. Completed in 1951, Mcknight #1 has a dam height of 25 feet and a length of 200 feet, providing a maximum storage capacity of 43 acre-feet and a normal storage of 29 acre-feet.
The dam is situated on TR-Hay Creek and is regulated by the state agency DNRC, with inspection, permitting, and enforcement all carried out by the state. Despite being classified as having a low hazard potential and a moderate risk assessment, the dam's condition is currently not rated. The spillway of Mcknight #1 is uncontrolled with a width of 100 feet, and it has a maximum discharge capacity of 1000 cubic feet per second.
Overall, Mcknight #1 serves as an important structure for water resource management in the area, providing essential functions for fire protection, livestock, and aquatic habitats. With its historical significance dating back to 1951, this dam stands as a testament to the collaboration between private ownership and government agencies in ensuring the safety and sustainability of water resources in Montana.
Year Completed |
1951 |
Dam Length |
200 |
Dam Height |
25 |
River Or Stream |
TR-HAY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
0.09 |
Nid Storage |
43 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Mcknight #1