Seney A-2 Pool Dam Reservoir Report

Last Updated: January 8, 2026

The Seney A-2 Pool Dam, located in Chippewa County, Michigan, was completed in 1937 by the USDA Bureau of Agricultural Engineering.


°F

°F

mph

Wind

%

Humidity

Summary

This earth dam stands at a height of 12 feet and serves the primary purpose of creating a Fish and Wildlife Pond for the Department of Interior Fish and Wildlife Service. With a normal storage capacity of 408 acre-feet and a maximum discharge of 988 cubic feet per second, the dam plays a crucial role in managing water resources and supporting wildlife habitats in the area.

Despite its low hazard potential, the dam is currently in poor condition as of the last inspection in August 2018. The risk assessment categorizes the dam as having a very high risk level, indicating the need for immediate attention and potential risk management measures. The dam is state-regulated and inspected by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), ensuring compliance with safety standards and regulations. With its historical significance and importance in water resource management, the Seney A-2 Pool Dam remains a focal point for water resource and climate enthusiasts interested in sustainable ecosystem management.

Years Modified

1980 - Structural

Year Completed

1937

Dam Length

22890

Dam Height

12

River Or Stream

HOLLAND DITCH

Primary Dam Type

Earth

Surface Area

282

Hydraulic Height

12

Drainage Area

62.3

Nid Storage

2139

Structural Height

15

Outlet Gates

Other Controlled

Hazard Potential

Low

Foundations

Soil

Nid Height

15
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.