Summary
Clair, Michigan, along the Krispin Drain. Built in 1964 for recreational purposes, this dam stands at 8 feet high and spans a length of 66,000 feet, with a storage capacity of 21,600 acre-feet. The dam is designed to have an uncontrolled spillway and is rated with a low hazard potential and satisfactory condition assessment.
Despite being a state-owned structure with no federal oversight or regulation, St Clair Flats Dikes still undergoes regular inspections every five years to ensure its safety and functionality. The dam's risk assessment is moderate, with moderate risk management measures in place. The last inspection in October 2015 confirmed the dam's satisfactory condition, allowing it to continue serving its purpose of providing recreational opportunities in the area.
Water resource and climate enthusiasts interested in St Clair Flats Dikes will find it to be a significant structure in maintaining water levels and providing recreational activities in the region. With its low hazard potential and satisfactory condition, this state-owned dam continues to play a vital role in water management along the Krispin Drain, contributing to the overall ecosystem health and recreational enjoyment in St. Clair, Michigan.
Year Completed |
1964 |
Dam Length |
66000 |
Dam Height |
8 |
River Or Stream |
Krispin Drain |
Primary Dam Type |
Earth |
Surface Area |
2700 |
Hydraulic Height |
4.8 |
Nid Storage |
21600 |
Structural Height |
8 |
Hazard Potential |
Low |
Nid Height |
8 |
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.
St Clair Flats Dikes
Anchor Bay Drive 9698, Clay Township