Long Lake Nwr 6 Reservoir Report
Last Updated: December 13, 2025
Long Lake Nwr 6, also known as Dike A, is a Federal-owned structure located in Burleigh, North Dakota.
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Summary
Built in 1943 by the USFWS, this earth dam stands at a height of 8 feet and stretches 3000 feet in length. It serves as a fish and wildlife pond with a storage capacity of 14,014 acre-feet and a surface area of 1569 acres, providing essential habitat for various species in the region.
The dam is regulated by the NDSWC, with state inspections and enforcement ensuring its safe operation. While the hazard potential is rated as low, the risk assessment indicates a moderate level of risk (3), prompting the need for continued monitoring and risk management measures. The spillway type is uncontrolled with a width of 60 feet, allowing for controlled release of water during high flow events to prevent overtopping and potential dam failure.
Overall, Long Lake Nwr 6 plays a crucial role in water resource management and wildlife conservation in the area. With its strategic location on Long Lake Creek, this structure not only provides essential habitat for fish and wildlife but also helps regulate water levels and prevent flooding in the surrounding areas. Its maintenance and monitoring are key to ensuring the safety and sustainability of this vital resource for both humans and nature.
Year Completed |
1943 |
Dam Length |
3000 |
Dam Height |
8 |
River Or Stream |
LONG LAKE CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
1569 |
Drainage Area |
1490 |
Nid Storage |
14014 |
Structural Height |
8 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Long Lake Cr Below Long Lake Nr Moffit
|
95cfs |
Apple Creek Nr Menoken
|
59cfs |
Hay Creek At Main Avenue In Bismarck
|
3cfs |
Missouri River At Bismarck
|
16700cfs |
Beaver Creek Bl Linton
|
39cfs |
Burnt Creek Nr Bismarck
|
9cfs |
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.
Long Lake Nwr 6