Idlewild Lake Reservoir Report

Last Updated: December 21, 2025

Idlewild Lake, located in Blairstown, Louisiana, is a state-regulated water resource primarily used for irrigation purposes.


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Summary

Built in 1956 by the Louisiana Department of Public Works, this Earth-type dam stands at a height of 22 feet and spans a length of 1250 feet, with a maximum storage capacity of 440 acre-feet. The lake covers a surface area of 37 acres and is fed by the TR-Sandy Creek river or stream.

With a controlled spillway and low hazard potential, Idlewild Lake has been deemed to be in fair condition as of the last inspection in April 2019. The dam's structural integrity is maintained through regular state inspections, enforcement, and permitting processes overseen by the Louisiana Department of Transportation and Development. Situated within the East Feliciana County, this water reservoir also serves recreational purposes, attracting climate enthusiasts and water resource advocates alike to its picturesque surroundings.

Managed under state jurisdiction and with a very high risk assessment rating of 1, Idlewild Lake remains a vital water source for the region. Its strategic location and historical significance make it a focal point for conservation efforts and sustainable water management practices. The lake's association with the Vicksburg District and its inclusion in the larger network of water infrastructure highlight its importance in securing water resources for future generations amidst changing climate patterns.

Year Completed

1956

Dam Length

1250

Dam Height

22

River Or Stream

TR-SANDY CREEK

Primary Dam Type

Earth

Surface Area

37

Hydraulic Height

19

Nid Storage

440

Structural Height

22

Outlet Gates

Slide (sluice gate)

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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.