Germantown Twp 30 Reservoir Report

Last Updated: December 13, 2025

Located in Cottonwood County, Minnesota, Germantown Twp 30 is a rockfill dam designed for flood risk reduction on Dry Creek-TR.


°F

°F

mph

Wind

%

Humidity

Summary

The dam, with a height of 13.9 feet and a length of 690 feet, serves as a critical infrastructure owned by the local government. Managed by the Minnesota Department of Natural Resources, the dam is regulated, inspected, and enforced by state agencies to ensure its safety and functionality. With a low hazard potential and satisfactory condition assessment, Germantown Twp 30 provides essential flood protection for the surrounding area.

The dam has a storage capacity of 84 acre-feet, primarily used for flood risk reduction purposes. Despite having a normal storage of 0 acre-feet, Germantown Twp 30 plays a crucial role in mitigating potential floods in the region. The dam's last inspection in May 2018 deemed it to be in satisfactory condition, indicating its reliability in safeguarding the community from potential water-related disasters. With no associated structures and a low hazard potential, Germantown Twp 30 stands as a dependable asset in managing water resources and climate challenges in the area.

As part of the St. Paul District, Germantown Twp 30 is situated in an area represented by Collin Peterson (D) in Congress. With state permitting, inspection, and enforcement in place, the dam adheres to regulatory standards set by the state of Minnesota. While the dam has not undergone modifications in recent years, its effective performance in flood risk reduction underscores its importance in water resource management. Germantown Twp 30 serves as a testament to the proactive measures taken to address climate-related issues and protect the community from potential water hazards.

Dam Length

690

Dam Height

13.9

River Or Stream

DRY CREEK-TR

Primary Dam Type

Rockfill

Drainage Area

2

Nid Storage

84

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

14
       
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.