Summary
Built in 1955 for irrigation purposes, this Earth-type dam stands at 35 feet tall and spans 2250 feet in length, with a storage capacity of 864 acre-feet. Located in Sterling, the reservoir is fed by Spring Creek and serves as a vital water source for the surrounding area.
Despite its low hazard potential and fair condition assessment, Perry has a high risk assessment rating of 2. The dam has not been inspected since July 2011, with an inspection frequency of 6 years. While it lacks certain emergency preparedness measures like an EAP and inundation maps, the reservoir meets state regulatory standards for permitting, inspection, and enforcement, ensuring its operational safety.
With a maximum discharge capacity of 23,000 cubic feet per second and a surface area of 40 acres, Perry plays a crucial role in the local water infrastructure. As climate change continues to impact water resources, monitoring and maintaining structures like Perry will be essential for ensuring water security and resilience in the region.
Year Completed |
1955 |
Dam Length |
2250 |
Dam Height |
35 |
River Or Stream |
SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
40 |
Hydraulic Height |
31 |
Drainage Area |
11 |
Nid Storage |
864 |
Structural Height |
35 |
Hazard Potential |
Low |
Nid Height |
35 |
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.
Perry