Summary
Completed in 1941, this earth dam stands at a height of 25 feet, with a primary purpose of fire protection, stock, or small fish pond. The dam has a storage capacity of 81 acre-feet, with a normal storage level of 47 acre-feet and a surface area of 6 acres.
Despite being classified as having a low hazard potential, North Trail's condition assessment is rated as poor. The dam has not been modified in recent years and does not have outlet gates. The spillway type is uncontrolled, with a width of 130 feet. The last inspection was conducted in July 2019, with an inspection frequency of 5 years.
In terms of risk assessment, North Trail is considered to have a moderate risk level (3). The dam is under the jurisdiction of the State of Wyoming, with regulatory oversight from the Wyoming State Engineer's Office. With its historical significance and role in providing water for fire protection and livestock, North Trail is a valuable resource that requires ongoing monitoring and maintenance to ensure its continued functionality and safety.
Year Completed |
1941 |
Dam Length |
395 |
Dam Height |
25 |
River Or Stream |
SCHOOL HOUSE PRONG N TRAIL CR |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
20 |
Nid Storage |
81 |
Structural Height |
25 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
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.
North Trail