Lamberty Pond Reservoir Report

Last Updated: December 13, 2025

Lamberty Pond in Welch, Minnesota, is a privately owned earth dam structure designed by the USDA NRCS to primarily serve as flood risk reduction infrastructure along the TR-Cannon River.


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Summary

Completed in 1959, this 30-foot high dam has a storage capacity of 20 acre-feet and a drainage area of 0.31 square miles. With a low hazard potential and a moderate risk assessment rating, Lamberty Pond plays a crucial role in mitigating flood risks in the region.

The dam features an uncontrolled spillway, a stone core, and a soil foundation, with a structural height of 31 feet and a length of 190 feet. While the condition assessment is currently not rated, the dam is inspected at a frequency of 0, reflecting its stable and well-maintained status. Despite being privately owned, Lamberty Pond serves as a valuable asset for water resource and climate enthusiasts, showcasing the importance of effective flood risk reduction measures in safeguarding communities and natural habitats.

Located in Goodhue County, Lamberty Pond is not regulated by the state nor does it require permitting or inspections from state agencies. With Angie Craig as the representative for the area, the dam continues to fulfill its primary purpose of flood risk reduction without significant modifications or alterations over the years. As a vital component of the watershed management system in the region, Lamberty Pond stands as a testament to the collaborative efforts of the Natural Resources Conservation Service and private owners in protecting against potential flooding events and ensuring the sustainability of water resources.

Year Completed

1959

Dam Length

190

Dam Height

30

River Or Stream

TR-CANNON RIVER

Primary Dam Type

Earth

Hydraulic Height

30

Drainage Area

0.31

Nid Storage

20

Structural Height

31

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
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.