Twin Lakes Park D.2 (Low) Reservoir Report
Last Updated: December 14, 2025
Twin Lakes Park D.2 (Low), also known as Spring Lake Park, is a local government-owned recreational area located in Williams, North Dakota.
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Summary
The park features an earth dam that was completed in 1933 by the Civilian Conservation Corps (CCC), with a dam height of 20 feet and a length of 220 feet. The dam has a storage capacity of 108.2 acre-feet and a surface area of 15.1 acres, making it an important water resource for the surrounding community.
Despite its age, Twin Lakes Park D.2 (Low) has a low hazard potential and a moderate risk assessment rating of 3. The dam has not been inspected since September 2000, but it is regulated by the North Dakota State Water Commission (NDSWC) and meets state permitting, inspection, and enforcement requirements. While the dam is considered to be in "not rated" condition, it is still deemed safe for recreational activities and serves as a valuable asset for water storage and conservation in the area.
Overall, Twin Lakes Park D.2 (Low) serves as a vital recreational and water resource for the community of WILLISTON. With its historical significance and functional design, the earth dam provides a safe and enjoyable environment for visitors while also contributing to water management efforts in the region. As climate change continues to impact water resources, the importance of maintaining and monitoring dams like Twin Lakes Park D.2 (Low) becomes increasingly crucial for ensuring the safety and sustainability of our water supply.
Years Modified |
1959 - Structural |
Year Completed |
1933 |
Dam Length |
220 |
Dam Height |
20 |
River Or Stream |
LITTLE MUDDY RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
15.1 |
Nid Storage |
108.2 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Twin Lakes Park D.2 (Low)