Ralph Ritter No.2 Reservoir Report
Last Updated: December 13, 2025
Ralph Ritter No.2 is a privately owned earth dam located in Campbell, South Dakota, completed in 1965 by the Natural Resources Conservation Service.
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Summary
With a height of 26 feet and a length of 400 feet, this dam has a storage capacity of 60 acre-feet and a maximum discharge of 1220 cubic feet per second. While the dam is rated as having low hazard potential, its condition assessment is currently listed as "Not Rated", indicating a need for further evaluation.
Owned and regulated by the state of South Dakota, Ralph Ritter No.2 is subject to regular inspections, permitting, and enforcement by the Department of Environment and Natural Resources. Despite its age, the dam has not been modified in recent years and lacks certain emergency preparedness measures such as an Emergency Action Plan. With its location along the TR-MISSONot RatedI river or stream, this dam plays a critical role in water resource management and flood control in the region.
As a vital piece of infrastructure in the St. Paul District, Ralph Ritter No.2 represents a significant investment in water resource management in South Dakota. Its presence ensures the protection of downstream communities and ecosystems while providing valuable water storage capacity for agricultural and recreational purposes. Enthusiasts of water resources and climate will find Ralph Ritter No.2 to be an intriguing case study in dam engineering and regulatory oversight in the Midwest.
Year Completed |
1965 |
Dam Length |
400 |
Dam Height |
26 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
60 |
Hazard Potential |
Low |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Oak Cr Near Wakpala Sd
|
10cfs |
Grand R At Little Eagle Sd
|
47cfs |
Beaver Creek Bl Linton
|
39cfs |
Moreau R Near Whitehorse Sd
|
35cfs |
Cannonball River At Breien
|
96cfs |
Cedar Creek Nr Raleigh
|
20cfs |
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.
Ralph Ritter No.2