Bennett Wetland Reservoir Report
Last Updated: December 13, 2025
Bennett Wetland, also known as Lonetree Gma, is a state-regulated wetland located in North Dakota, specifically in Sheridan County.
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Summary
The wetland serves as a crucial habitat for fish and wildlife, with a primary purpose of being a Fish and Wildlife Pond. Completed in 2000, the Earth dam stands at a height of 17 feet and has a length of 1500 feet, providing a surface area of 73.8 acres and a drainage area of 44.4 acres.
Managed by the North Dakota State Water Commission (NDSWC), Bennett Wetland has a low hazard potential and is currently in a not rated condition assessment. With a moderate risk assessment rating, the wetland features an uncontrolled spillway with a width of 200 feet and a single vertical lift outlet gate. Despite not having a last inspection date recorded, the wetland is equipped for state permitting, inspection, and enforcement, ensuring its functionality and safety for both wildlife and the surrounding community. Bennett Wetland stands as a vital water resource in North Dakota, playing a significant role in the conservation and protection of the local ecosystem.
Year Completed |
2000 |
Dam Length |
1500 |
Dam Height |
17 |
River Or Stream |
SHEYENNE RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
73.8 |
Drainage Area |
44.4 |
Nid Storage |
1082 |
Outlet Gates |
Vertical Lift - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sheyenne River Above Harvey
|
7cfs |
Wintering River Nr Karlsruhe
|
48cfs |
Souris River Nr Verendrye
|
18cfs |
Little Coulee Nr Leeds
|
0cfs |
Souris River Nr Bantry
|
73cfs |
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.
Bennett Wetland