Restoration Pond B Reservoir Report
Nearby: Parkman Disposal Jepson No. 2
Last Updated: December 8, 2025
Restoration Pond B is a privately-owned earth dam located in Johnson, Wyoming, along Offstream Willow Creek.
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Summary
Built in 1980 by designer Jerry A. Jelinck, this structure serves a primary purpose of "Other" and stands at a height of 25 feet with a hydraulic height of 12 feet. With a length of 1550 feet and a storage capacity of 20 acre-feet, this pond covers a surface area of 2 acres and is regulated by the Wyoming State Engineer's Office.
Despite its low hazard potential and fair condition assessment, Restoration Pond B poses a high risk due to its proximity to populated areas. The dam has undergone inspections every 5 years, with the last assessment conducted in August 2017. While it lacks a spillway, outlet gates, or locks, this structure remains vital for water resource management and climate resilience in the region. As water resource and climate enthusiasts, we must advocate for regular maintenance and risk management measures to ensure the safety and sustainability of Restoration Pond B for future generations.
Year Completed |
1980 |
Dam Length |
1550 |
Dam Height |
25 |
River Or Stream |
OFFSTREAM WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
12 |
Nid Storage |
20 |
Structural Height |
20 |
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.
Restoration Pond B
Powder River (Cantonment Reno)