Memorial Park Dam Reservoir Report
Last Updated: December 14, 2025
Memorial Park Dam, also known as Grand Rapids Dam, is a rockfill dam located in LaMoure, North Dakota, on the James River.
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Summary
Built in 1933 by the Civilian Conservation Corps (CCC), this dam serves primarily for recreational purposes, providing a storage capacity of 69 acre-feet. The dam stands at 9 feet high and stretches 140 feet in length, with an uncontrolled spillway width of 87 feet.
Despite its low hazard potential and moderate risk assessment, Memorial Park Dam is regulated by the North Dakota State Water Commission (NDSWC) and undergoes regular inspections, permitting, and enforcement. The dam has not been rated for its condition assessment, but it meets state regulatory standards for operation and safety. The area surrounding the dam offers recreational opportunities for water resource and climate enthusiasts, making it a popular destination for outdoor activities and wildlife observation.
As a key feature of the St. Paul District of the US Army Corps of Engineers, Memorial Park Dam contributes to the management of the James River watershed and provides valuable water storage capacity for the surrounding area. With its historical significance and ongoing role in water resource management, this dam continues to be a focal point for conservation efforts and environmental stewardship in North Dakota.
Year Completed |
1933 |
Dam Length |
140 |
Dam Height |
9 |
River Or Stream |
JAMES RIVER |
Primary Dam Type |
Rockfill |
Drainage Area |
4000 |
Nid Storage |
69 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
9 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
James River At Lamoure
|
217cfs |
Bear Creek Nr Oakes
|
5cfs |
Sheyenne River At Lisbon
|
222cfs |
James River At Jamestown
|
205cfs |
Maple R At Nd-Sd State Line
|
5cfs |
James River At Nd-Sd State Line
|
194cfs |
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.
Memorial Park Dam