Summary
Completed in 1964, this earth dam stands at 22 feet tall and spans 1070 feet in length. Its primary purpose is to provide irrigation water storage, with a normal storage capacity of 69 acre-feet and a maximum storage of 172 acre-feet.
Despite its low hazard potential and fair condition assessment, Hepp is subject to state regulation, inspection, and enforcement by the Wyoming State Engineer's Office. The dam features an uncontrolled spillway with a width of 100 feet and is equipped with a single slide gate for outlet control. The last inspection in July 2018 deemed the dam to be in fair condition, with a moderate risk assessment rating of 3.
Hepp serves as a vital resource for agricultural water management in the region, offering a reliable source of water for irrigation purposes. Its strategic location and design make it a key component of the water infrastructure in the area, contributing to the sustainability and resilience of the local agricultural sector. Despite being privately owned, Hepp plays a crucial role in water resource management and climate adaptation efforts in the region, highlighting the importance of maintaining and monitoring dams for long-term water security.
Year Completed |
1964 |
Dam Length |
1070 |
Dam Height |
22 |
River Or Stream |
DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
17 |
Nid Storage |
172 |
Structural Height |
22 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Clear Creek Near Buffalo
|
17cfs |
Rock Creek Near Buffalo
|
70cfs |
Piney Creek At Kearny
|
113cfs |
South Piney Creek At Willow Park
|
0cfs |
Powder River At Arvada
|
252cfs |
Wild Horse Creek Near Arvada
|
0cfs |
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.
Hepp