Blewer Pond Reservoir Report

Last Updated: December 7, 2025

Blewer Pond, also known as Blewer Pond (Mirror Lake), is a captivating water resource located in Winn, Louisiana, near the city of Mill.


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Summary

Managed by the local government, this recreational site sits on the TR-Saline Bayou, offering visitors a serene escape into nature. Constructed in 1947, this earth dam stands at 24 feet high, with a storage capacity of 660 acre-feet and a surface area of 55 acres.

Despite its scenic beauty, Blewer Pond has a poor condition assessment and a moderate risk level, with a low hazard potential. The dam's structural integrity and safety measures are in need of improvement to ensure the protection of the surrounding area and its inhabitants. The Louisiana Department of Transportation and Development (LA DOTD) oversees the state-regulated water resource, conducting inspections and permitting to uphold safety standards.

Water resource and climate enthusiasts visiting Blewer Pond can appreciate its historical significance and the opportunity for recreational activities such as fishing, boating, and wildlife observation. The pond's tranquil waters and natural surroundings provide a peaceful retreat for outdoor enthusiasts seeking to connect with nature and enjoy the beauty of Louisiana's landscape. With proper maintenance and risk management measures in place, Blewer Pond can continue to be a valuable resource for both locals and visitors alike.

Year Completed

1947

Dam Length

900

Dam Height

24

River Or Stream

TR-SALINE BAYOU

Primary Dam Type

Earth

Surface Area

55

Hydraulic Height

18

Drainage Area

1

Nid Storage

660

Structural Height

24

Hazard Potential

Low

Foundations

Soil

Nid Height

24
       
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.