Ogren Dam No. 2 Reservoir Report

Last Updated: December 13, 2025

Ogren Dam No.


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Summary

2, located in Marshall, South Dakota, along the TR Crow Creek, is a privately-owned earth dam completed in 2009. With a height of 22 feet and a storage capacity of 133 acre-feet, this dam serves as a crucial water resource infrastructure for the region. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to regular inspections to ensure its safety and compliance with state regulations.

Despite its low hazard potential, Ogren Dam No. 2 is considered to have a moderate risk level, with a risk assessment rating of 3. The dam has an uncontrolled spillway with a width of 30 feet, providing a means for excess water to be safely discharged. While the dam's condition is currently not rated, it is important for water resource and climate enthusiasts to monitor its maintenance and any potential modifications in the future to mitigate risks and ensure the continued safety and efficiency of this essential infrastructure.

As part of the St. Paul District of the US Army Corps of Engineers, Ogren Dam No. 2 plays a critical role in managing water resources and protecting against flooding in the region. With its strategic location along TR Crow Creek, this dam contributes to the overall water management efforts in South Dakota. As climate change continues to impact water resources, the importance of maintaining and monitoring dams like Ogren Dam No. 2 becomes increasingly vital for ensuring the resilience and sustainability of our water infrastructure.

Year Completed

2009

Dam Length

495

Dam Height

22

River Or Stream

TR CROW CREEK

Primary Dam Type

Earth

Hydraulic Height

22

Drainage Area

2

Nid Storage

133

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.