Parrow Dam Reservoir Report
Last Updated: December 13, 2025
Parrow Dam, located in Marshall, South Dakota, is a privately owned structure designed by KONECHNE ENG.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, completed in 2009, is an Earth type dam with a height of 27 feet and a length of 330 feet. It serves the primary purpose of water storage, with a maximum storage capacity of 111 acre-feet and a normal storage capacity of 61 acre-feet. The dam is situated on the TR. JAMES RIVER and is regulated by the South Dakota Department of Environment and Natural Resources.
Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level. The spillway of the dam is uncontrolled with a width of 40 feet, and it has a maximum discharge capacity of 540 cubic feet per second. The condition of the dam is currently not rated, and emergency preparedness measures such as an Emergency Action Plan (EAP) have not been reported. The risk assessment for Parrow Dam indicates a moderate level of risk, emphasizing the importance of ongoing monitoring and maintenance to ensure the safety and integrity of the structure for both water resource management and climate resilience in the region.
Year Completed |
2009 |
Dam Length |
330 |
Dam Height |
27 |
River Or Stream |
TR. JAMES RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Drainage Area |
1 |
Nid Storage |
111 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wild Rice River Nr Rutland
|
21cfs |
James River At Nd-Sd State Line
|
194cfs |
Bear Creek Nr Oakes
|
5cfs |
Little Minnesota River Near Peever
|
27cfs |
James R At Columbia Sd
|
268cfs |
Sheyenne River At Lisbon
|
222cfs |
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.
Parrow Dam