Simms Reservoir Reservoir Report
Nearby: Bryant Mt. Dam Mccoy Reservoir
Last Updated: December 6, 2025
Simms Reservoir, also known as Pope Reservoir, is a private water source located in Klamath, Oregon, primarily used for irrigation purposes.
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Summary
Built in 1915, this Earth type dam stands at 15 feet high and stretches 680 feet in length, with a storage capacity of 515 acre-feet. Situated on Mills Creek, the reservoir covers a surface area of 65.4 acres and serves as a crucial resource for the surrounding agricultural community in Malin.
Managed by the Oregon Water Resources Department, Simms Reservoir is regulated, inspected, and enforced for safety and compliance with state jurisdiction. Despite being rated as low hazard potential with no current condition assessment, the dam undergoes regular inspections every 6 years. While there are no associated structures or locks, the reservoir features a maximum discharge capacity of 333 cubic feet per second, ensuring efficient water management during peak demand periods. For water resource and climate enthusiasts, Simms Reservoir stands as a testament to sustainable irrigation practices in the region, contributing to the agricultural productivity of Klamath County.
Year Completed |
1915 |
Dam Length |
680 |
Dam Height |
15 |
River Or Stream |
MILLS CREEK |
Primary Dam Type |
Earth |
Surface Area |
65.4 |
Hydraulic Height |
15 |
Drainage Area |
6.19 |
Nid Storage |
515 |
Structural Height |
15 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canal At Highway 97
|
104cfs |
Klamath Straits Drain Near Worden
|
1cfs |
Ady Canal At Highway 97
|
39cfs |
Link River At Klamath Falls
|
928cfs |
Klamath River At Keno
|
698cfs |
Klamath River Blw John C.Boyle Pwrplnt
|
902cfs |
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.
Simms Reservoir