Summary
Owned and regulated by the local government, this earth dam was completed in 2001 by WSN ENG and is designed to mitigate flooding along Muddy Creek. With a dam height of 17 feet and a length of 1350 feet, Chokio Detention has a storage capacity of 2500 acre-feet and serves a drainage area of 12.9 square miles.
The dam's primary purpose is flood risk reduction, and it is classified as a low hazard potential structure with a satisfactory condition assessment. Despite being uncontrolled, the spillway has a width of 28 feet to handle a maximum discharge of 3600 cubic feet per second. The structure's normal storage capacity is 94 acre-feet, with a surface area of 109 acres. Chokio Detention is inspected every 8 years, with the last assessment conducted in August 2017, meeting regulatory standards set by the Minnesota Department of Natural Resources.
Overall, Chokio Detention plays a crucial role in managing flood risks in the region, protecting surrounding areas from potential inundation. With its strategic location and design features, this earth dam stands as a testament to effective water resource management and climate resilience efforts in Stevens County, Minnesota.
Year Completed |
2001 |
Dam Length |
1350 |
Dam Height |
17 |
River Or Stream |
MUDDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
109 |
Drainage Area |
12.9 |
Nid Storage |
2500 |
Structural Height |
20 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
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.
Chokio Detention