Shutter Reservoir Report
Nearby: Turkey Iberlin 43-3-4676
Last Updated: December 8, 2025
Shutter is a privately owned irrigation dam located in Wyoming, specifically in Campbell County near the city of Wormwood Ranch.
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Summary
Completed in 2009, this earth dam stands at 32 feet in height and spans 440 feet in length, with a maximum storage capacity of 106 acre-feet. Its primary purpose is irrigation, serving the needs of the surrounding area for fire protection, stock watering, and small fish pond support.
The dam's design includes a stone core and soil foundation, with a spillway width of 60 feet to manage a maximum discharge of 2180 cubic feet per second. Despite its low hazard potential and fair condition assessment, the dam is subject to regular inspections every five years to ensure its safety and structural integrity. While it has not been modified in recent years, Shutter remains a crucial water resource for the local community, contributing to the overall water management efforts in the region.
Managed by the Wyoming State Engineer's Office and falling under state jurisdiction, Shutter plays a vital role in water conservation and distribution within the Skinny Fork Draw watershed. With its moderate risk assessment rating and compliance with state permitting and inspection requirements, this dam represents a key piece of infrastructure supporting sustainable water use and environmental stewardship in the area.
Year Completed |
2009 |
Dam Length |
440 |
Dam Height |
32 |
River Or Stream |
SKINNY FORK DRAW |
Primary Dam Type |
Earth |
Surface Area |
5.38 |
Hydraulic Height |
25 |
Drainage Area |
0.62 |
Nid Storage |
106 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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.
Shutter