Seney T-2 Pool Dam Reservoir Report
Last Updated: December 5, 2025
Located in Schoolcraft, Michigan, the Seney T-2 Pool Dam serves as a vital component of the Sand Creek ecosystem, functioning primarily as a Fish and Wildlife Pond.
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Summary
Constructed in 1937 by the USDI FWS Department of Engineering, this earth dam stands at a height of 16 feet and boasts a hydraulic height of 14 feet. With a normal storage capacity of 50 acre-feet and a drainage area of 71.9 square miles, the dam plays a crucial role in managing water resources and supporting aquatic biodiversity in the region.
Despite its significant contributions to the local environment, the Seney T-2 Pool Dam has been flagged for its poor condition assessment, prompting a structural modification in 1978. The dam's hazard potential is deemed low, but its risk assessment remains very high. Given the dam's outdated infrastructure and the potential risks associated with its current state, regular inspections and maintenance are imperative to ensure the safety and functionality of the structure. As a federally owned and regulated facility, the dam falls under the jurisdiction of the Michigan Department of Environment, Great Lakes, and Energy (DEGLE).
With the critical role it plays in preserving the ecosystem of Sand Creek, the Seney T-2 Pool Dam stands as a testament to the intersection of water resource management and climate resilience. As stewards of this vital infrastructure, it is essential for federal and state agencies to collaborate on implementing necessary risk management measures and ensuring the long-term sustainability of this important ecological resource.
Years Modified |
1978 - Structural |
Year Completed |
1937 |
Dam Length |
19045 |
Dam Height |
16 |
River Or Stream |
SAND CREEK |
Primary Dam Type |
Earth |
Surface Area |
60 |
Hydraulic Height |
14 |
Drainage Area |
71.9 |
Nid Storage |
2764 |
Structural Height |
17 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Manistique River Near Manistique
|
1710cfs |
Black River Near Garnet
|
16cfs |
Sturgeon River Near Nahma Junction
|
105cfs |
Au Train River At Forest Lake
|
137cfs |
Tahquamenon River Near Paradise
|
765cfs |
Escanaba River At Cornell
|
687cfs |
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.
Seney T-2 Pool Dam
Manistique River Road Germfask Township