Etb Waterway Dams Reservoir Report
Last Updated: December 5, 2025
Etb Waterway Dams, also known as "D," "E," and "F" Waterway Dams, are located in Gwinn, Michigan, along Green Creek.
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Summary
These private dams were completed in 1986 and serve various purposes, including flood control and water storage. With a height of 20 feet and a storage capacity of 83 acre-feet, these earth dams play a crucial role in managing water resources in the area.
The dams are regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), with regular inspections ensuring their satisfactory condition and low hazard potential. Despite their age, the Etb Waterway Dams have been well-maintained and meet regulatory guidelines, providing a moderate level of risk assessment. The surrounding area benefits from the dams' ability to control water flow and mitigate potential flooding, making them essential infrastructure for the community.
With a history of effective operation and minimal risk, the Etb Waterway Dams stand as a testament to responsible water resource management. Their presence along Green Creek in Marquette County, Michigan, highlights the importance of maintaining and monitoring dams to ensure the safety and well-being of local residents and the surrounding environment. As climate change continues to impact water systems, these dams play a vital role in adapting to and mitigating its effects, showcasing the importance of sustainable infrastructure for a changing world.
Year Completed |
1986 |
Dam Length |
800 |
Dam Height |
20 |
River Or Stream |
Green Creek |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
17 |
Drainage Area |
5.2 |
Nid Storage |
83 |
Structural Height |
20 |
Hazard Potential |
Low |
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.
Etb Waterway Dams
Schweitzer Reservoir Near Palmer
Greenwood Reservoir Near Greenwood
Begins Approximately 2 River Miles Downstream From The Yellowhouse Branch Confluence With The Escatawpa River Near The Town Of Deer Park, Alabama
To Ends Approximately 1 River Mile Upstream From The U.S. Highway 98 Bridge