Roger's Folly No. 2 Reservoir Report
Nearby: South Fork Horn Creek
Last Updated: December 13, 2025
Roger's Folly No.
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Summary
2 is a private-owned Earth dam located in Johnson County, Wyoming, specifically in Ranch House along the Schlicht Draw river. Built in 1964 by designer Laverne Nelson, this dam serves multiple purposes including fire protection, stock, small fish pond, and most importantly, fish and wildlife pond. With a structural height of 20 feet and a length of 352 feet, Roger's Folly No. 2 has a storage capacity of 181 acre-feet and covers a surface area of 15.1 acres.
Despite being classified as having a low hazard potential and fair condition assessment, the dam has a moderate risk level of 3. The spillway is uncontrolled with a width of 320 feet, and the maximum discharge capacity is 1397 cfs. The last inspection conducted in August 2018 revealed no significant issues, and the dam is maintained under the oversight of the Wyoming State Engineer's Office. With a drainage area of 8 square miles, Roger's Folly No. 2 plays a crucial role in supporting local fish and wildlife habitats while also providing recreational opportunities for the community.
In the event of an emergency, the dam lacks an Emergency Action Plan (EAP) and inundation maps, raising concerns about the preparedness for potential risks. The dam is not under the jurisdiction of the US Army Corps of Engineers and is subject to state regulations and inspections. With its unique design and importance for fish and wildlife conservation, Roger's Folly No. 2 stands as a testament to the intersection of human engineering and environmental stewardship in managing water resources and climate impacts.
Year Completed |
1964 |
Dam Length |
352 |
Dam Height |
20 |
River Or Stream |
SCHLICHT DRAW |
Primary Dam Type |
Earth |
Surface Area |
15.1 |
Hydraulic Height |
15 |
Drainage Area |
8 |
Nid Storage |
181 |
Structural Height |
20 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
20 |
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.
Roger's Folly No. 2
North Fork Powder River